Planning Your Bitcoin Mining Operation

Operating  a Bitcoin mining facility can be profitable, but you need to treat it like a business. I operate a small Bitcoin mining facility, and there is a lot more that goes into it than just plugging in the equipment and letting it run.

It’s easy to set up a single Bitcoin mining device and run it. Scaling to something that can make a significant amount of money is a different story, however. To make a profit, one needs reliable revenue and low costs. This means low costs for all aspects of the operation:

Equipment

Electricity

Cooling

Infrastructure

Business Management

Operations and Maintenance

Equipment

Bitmain Tech Antminer S9

Bitcoin mining hardware is the first and most important part of the operation. If you can’t get good equipment at a good price, you might as well stop right there. At this point in time, the best equipment to buy is the Bitmain Antminer S9. You should be able to generate about 0.5 Bitcoin per month (as of July 2016, post-halvening).

The Bitmain Antminer S7 is a good choice to learn about mining. Depending on your electricity prices, it might be profitable for you to operate it.

The power supplies need to be purchased separately. If you have 110 Volt AC, get this setup from Centrix International. If you have 220 VAC, you can use either the Centrix setup, or get the power supply from Bitmain.

Electricity

The Bitcoin mining hardware basically convert electricity to Bitcoin. The lower your electricity costs, the better off you will be. For US Dollars, your electricity costs should be $0.10 per KiloWatt Hour or less to maintain profitability.

Calculating actual electricity cost can be a bit tricky, and if you have a choice of electricity suppliers, it is worth getting their rate sheet to determine the price at the usage. As a starting point, there will be different rates.

Residential – usually low price.

Commercial light – less than 200 amps or 30,000 KWHr per month

Commercial medium – less than 500,000 KWHr per month

Commercial heavy – everything else

Within these rates, there will usually be a few categories of costs. It is best to put together a spreadsheet, add all the costs together, then calculate an effective per KWHr rate in order to compare the two. The costs you will have to take into account are:

Monthly service fee

Usage fee – how many KWHr used

Demand fee – maximum Watts used at any one time

Demand peak – additional fee based on maximum Watts vs. average Watts

If you are in a location where electricity is included in the price of your location, you may be able to operate a single Bitcoin miner. I’ve found that you can turn the fan speed down to 40% or so if you operate in an air-conditioned environment, then it won’t be that loud, and you might be able to run it without anyone noticing…but if you operate more than one of the units the electrical usage will be probably be noticed by the building owner at some point. These devices use a lot of electricity!

One of the first questions I get is the possibility of using solar power. Yes, it’s possible, and let’s think about it for a minute. A solar panel can supply about 100 Watts when the sun is shining on it. Ten of the Antminer S9’s use 12,000 Watts, 24 hours per day. So you would need three times as many solar panels and a storage system. That’s 360 solar panels, and at $100 each, that’s $36,000 in panels! You would also need a place to set them up, wiring between them, and someone to keep them all running. That would be difficult and probably not the best use of your time.

Whenever you have the option, use 220 Volt AC instead of 110 VAC.  The power supplies for the miners run more efficiently at the higher voltage.

Cooling

Bitcoin miners put out a lot of heat. The fans on each of the Antminer units push through about 200 Cubic Feet per Minute (CFM) of air. The nice thing is, there are no hard drives in these systems, so they can run hotter than a typical server.

These systems are basically three cards, each running lots of ASIC’s, with heat sinks on the top and bottom of the chips. Here is one that’s open for cleaning.

Antminer open for cleaning.So the good news is that these boxes don’t need to be in an air conditioned environment, they just need a lot of airflow to get rid of the heat. In my first location, I put in place a large exhaust fan that was rated at 10,000 CFM. That size fan would be able to remove the heat generated by 50 Antminers because 50 x 200 CFM = 10,000 CFM. I had to match the intake vents to 10,000 CFM of airflow also, of course. That took up twice the space of the fan.

You will need a way to direct the flow of air so it does not bypass or recirculate around your Bitcoin miners. I built some air flow guides out of wooden 2×4’s with plastic sheeting stapled to it.

Infrastructure

This is all the stuff that you need to get the Bitcoin miners connected and working. It helps to have a little bit of data networking knowledge here. Easiest way to get that is to pick up a Cisco CCNA certification guide from the bookstore and use that as a reference.

Firewall and router

You’re going to need an internet connection. It does not need to be fast, but it should be reliable. The Bitcoin miners can only earn money if they can download the hashing puzzles from the Internet and upload the solutions.

It would be useful to have a firewall that has remote access VPN capability, so you would be able to access the equipment remotely. I really like the Cisco Meraki MX64W firewall. It’s everything you need, has top level security, and provides remote access VPN along with Wifi.

Network Switches

Each of the Bitcoin miners has a network connection. It needs to plug into something. You’ll need to buy a network switch to make it work. The switches don’t have to be fast. I prefer to buy used Cisco 48 port switches. You can get one of those for less than $100 on eBay.

Power Distribution Unit

The Bitcoin miners use a lot of power – did I say that already? You are going to need an electrician to run electricity to your miners. Tell him that you want a bunch of 220 VAC, 30 Amp connections, and you are going to be using NEMA L6-30P connectors (in North America).

Plan on each Antminer using 6 Amps of 220VAC power, which means if you get a 30 amp Power Distribution Unit (PDU), you can power 4 Antminer’s from it. You can try to power 5 from them, but you’ll pop circuit breakers. This Tripp-Lite PDUH30HV would a good one to get.

Power Cords

You’ll need to get the power cables that go from the PDU to the power supplies also. These can be tricky to figure out. You’ll need the IEC C14 to C13  connectors. There’s lots of different vendors for these.

This is a handy guide from APC to all the different types of power connectors that can be used in North America

Video Surveillance System

These are really inexpensive these days. Connect a cheap 4 camera video surveillance system up to your network. It’s nice to be able to quickly see that everything is working well while you are away. And if someone messes with your stuff, that’s nice to see also.

Shelves

I bought cheap shelves from Lowes and Home Depot. I like the ones from Home Depot better. You don’t need anything fancier .

Things You Don’t Need

There is stuff you could buy if you wanted to be extravagant. But I don’t think it’s worth it.

Smart PDU’s – I first started using these, because I thought it would be nice to be able to reboot the Bitcoin miners remotely. It turns out they are more trouble than they are worth.

Computer Server Racks – These are a waste of money. The Antminers don’t fit on them.

Air Conditioning – Too expensive to run

Uninterruptable Power Supplies (UPS’s) – Not needed, and way too expensive. If power goes down, you want your miners to shut down. When power comes back on, everything will boot and start running again.

Business Management

This is a business that makes money. There are things that need to be done for business management, both in the initial setup, and in the ongoing operations. It should be registered as a company so that business expenses are deducted from income, and any taxes will be paid only on the profits.

This means you should engage with at least an accountant, so that you can capture the depreciation of the Bitcoin miners.

Business Setup

Form business as an LLC, register with the State

Get an Employer Identification Number from the IRS

Set up a bank account and fund it.

Lease a space for operations

Obtain a Certificate of Occupancy (pro tip – make changes to space after getting CO)

Get account with power company and internet service provider

Bitcoin Mining Operations

Get electrical pulled into space

Set up natural circulation cooling

Configure data network

Configure power distribution to Bitcoin miners

Operate miners and scale up

Keep track of all purchases and expenses for tax purposes.

Business Operations

Set up Bitcoin Miners to send Bitcoin to an account on an Exchange.

Sell Bitcoin on the Exchange to fund operations, send money to bank account.

Pay bills from bank account.

Keep equipment running.

Save enough Bitcoin or money to fund an equipment refresh every two years

Pay taxes as you need to. Understand depreciation. Get an accountant.

Operations and Maintenance

The first few months of operations will be great. As you add more Bitcoin miners, you’ll see your daily, weekly, and monthly income go up.

And then things will start to go wrong. Power, cooling, and other issues will crop up.

So you’ll have to start a regular schedule of maintenance and upgrades to the equipment. There’s many different things that will have to be done, but the biggest one is cleaning.

Get yourself a dust mask and an air compressor, and clean your Bitcoin miners out every few months.

Summary

Remember, keep your costs low. The two biggest costs are the Bitcoin miners and electricity. If you can control those, everything else will work out. If you are planning on setting this up as a legitimate business, plan for minimizing taxes right from the start. If you do it right, you can be cash flow positive yet have a tax loss to offset your other income…good luck!

Setup Your Own Mining Pool


This is a step by step guide on how to setup your own mining pool for things like bitcoin, litecoin, and other crypto-currencies.

This guide is meant to replace Novice’s Guide to Setting up a Crypto-Currency Mining Pool

Why the update? MPOS (Mining Portal Open Source) is very old now and NOMP (Node Open Mining Portal) has branched off into another project called uNOMP (Unified, Node Open Mining Portal). uNOMP has a very active development team and is updated on a regular basis. This not only ensures adequate support of new currencies, but also better security. uNOMP also has many things in one, and is easier to setup then the old MPOS/NOMP hybrid as described in the legacy guide.

I have ran several large mining pool operations, and helped out at several more. The purpose of this guide is to enable more people the opportunity to run their own pool, whether it be for their own miners or just out of curiosity to understand how it all works. This is by no means meant to be a guide so you can setup your own professional mining pool operation. Running your own mining pool that other miners other then yourself will use is not an easy undertaking, and requires extensive systems administration experience as well as a large budget, patience, troubleshooting skills, and a solid knowledge of how crypto-currencies work. This guide will not be going over any security features.

This guide is going over how to setup a uNOMP (Unified, Node Open Mining Portal) pool. This is meant to setup a mining pool for a single crypto-currency. This is not a guide for a multipool.

• Table of Contents

• Guide Requirements

• VPS Setup

• Update Ubuntu

• Setup Swap

• Install Required Packages

• User Setup

• Reboot

• Litecoin Daemon Setup (Wallet)

• Mining Pool Setup

• Download and Update uNOMP

• Main Configuration

• Pool Configuration

• Start your Mining Pool

• Install Forever

• Conclusion

• Related

Guide Requirements

VPS with at least 2 Cores, 4GB Ram, 50GB Disk Space and Ubuntu Server 14.04 x64 (I used Vultr for this guide)

Putty

WinSCP

Very basic knowledge of Linux

While writing this guide I was using a Vultr Cloud Server Yes, those are referral links that we benefit from if you sign up.

If you are setting up a bitcoin pool, you will need more then 50GB of disk space because the blockchain is very large.

I am using a Windows 10 based PC, and communicate with the VPS using Putty and WinSCP.

This guide will probably take you a long time, especially if you are new to Linux. I highly suggest you be patient, and take it one step at a time.

This guide is meant for novices. If you are already an experienced systems administrator then head on over to the uNomp Github and follow their directions.

A lot of these commands will seem very redundant, especially all the blank “cd” commands. Since everything is split up into different sections, sometimes readers can loose track easily. Blank “cd” commands can put them on track and get them into the right directory.

I will be using Litecoin (scrypt), I will not be going into specific of how to host something like dash (x11) or other algorithms. After you understand the basic concept of how uNOMP works, you will later realize it is not hard to change algorithms.

If you have the ability to snapshot your VPS, then I suggest you do that every time you complete a step. It will save you a lot of time if you make a mistake.

All shell commands will be surrounded with a code box like this:

shell command

Information I want you to insert into a file, or somewhere else will be surrounded with a block quote box like this:

info for a file

VPS Setup

At this point you should have your VPS started, putty up and running and your logged in as root.

Let’s go ahead and setup the VPS before we get into the meat and potatoes.

Update Ubuntu

apt-get update
apt-get dist-upgrade

Setup Swap

By default there is no swap setup on my VPS, it is required especially on a system with limited memory. I am setting up a 4GB swap, which is the most common swap size used for a VPS.

dd if=/dev/zero of=/mnt/myswap.swap bs=1M count=4000
mkswap /mnt/myswap.swap
swapon /mnt/myswap.swap

Now let’s add it into fstab so it will activate at boot.

nano /etc/fstab

Add the following line at the end of the file.

/mnt/myswap.swap none swap sw 0 0

Should look something like this:

Ctrl+O to save, and Ctrl+X to exit the nano editor.

Now your swap is setup, you can modify the size in the future if you need more or less.

Install Required Packages

apt-get install build-essential libtool autotools-dev autoconf pkg-config libssl-dev
apt-get install libboost-all-dev git npm nodejs nodejs-legacy libminiupnpc-dev redis-server
add-apt-repository ppa:bitcoin/bitcoin
apt-get update
apt-get install libdb4.8-dev libdb4.8++-dev
curl https://raw.githubusercontent.com/creationix/nvm/v0.16.1/install.sh | sh
source ~/.profile
nvm install 0.10.25
nvm use 0.10.25

All required packages are installed, we may have to hit a few more later but for right now you are good.

User Setup

You never run things like your coin daemon (wallet), or other things as root!

Let’s create a user for your mining pool.

As root type:

adduser usernameyourwant

Use whatever username you want, I will be using “poolguide” for this guide just because it is simple.
Do not use the sample username I use, think of your own for security purposes.
You will be prompted for a password, please use a password that is different from your root password.
The other info it asks for you can either fill out or just leave blank and hit enter.

Now let us give that new user sudo access:

adduser usernameyousetup sudo

Reboot

A lot has been done to the VPS. Let us go ahead and reboot it as a good, safe practice.

reboot

That is it for the VPS setup, let’s move on.

Litecoin Daemon Setup (Wallet)

Now let’s setup the coin daemon, I will be using Litecoin.

Boot up putty and login to that new user we setup earlier.

cd
git clone https://github.com/litecoin-project/litecoin.git

Now let’s compile litecoin.

cd litecoin
sudo ./autogen.sh
sudo ./configure
sudo make
sudo make install

The compile process will take a long time, especially if you have a small VPS with only 1 or 2 vCores. Once you do the command “sudo make” I highly suggest you take a break or whatever it is you need to do, because it will be a moment until you are ready to do the next command.

Now let’s go ahead and run litecoind (the daemon) so it will create the .litecoin directory in your users home dir.

cd src
./litecoind

You will get a message stating there is no configuration file, and they suggest such and such rpc user/pass. We are getting to that.

Now we need to setup the config file for the litecoind.

I am going to start using WinSCP to edit/add files, yes you can use nano, gedit, vim, or whatever shell based text editor you want instead. However, when a novice starts editing as many files as we are about to edit it will be easier for them if they use graphic interface for all of it. It will also help a novice understand the file structure better.

You can get WinSCP here: http://winscp.net/eng/download.php

I will walk you through WinSCP with this litecoind config file, but after that you should be able to use it easily if I just list out what directory you need to go to. You will see here shortly.

Once you install WinSCP, you should be prompted with a login screen.

Select “New Site”

“File Protocol” will be SFTP

“Hostname:” is your VPS IP

“Port number” is your ssh port that you have been using with putty

“User name:” will be root

“Password:” is your root password

Fill all that out and it should look like this (with your server info in there):

Click login, make sure to accept the host key.

Now that you have logged in, you are in the /root folder. Double click the “..” to back out of it.

The file path is /home/username/.litecoin

Click on the “home” folder.

Click on the folder that is named after your username.

Click on “.litecoin” it will be grayed out like such:

Right click on the white area in WinSCP and Go to “New” and “File”. Should look like this:

Name the file “litecoin.conf”

A white text editor window should pop up, this is WinSCP’s internal editor and what we will be using to edit files. Now we’ll want to put some basic stuff into the configuration file. You should definitely use a different username and password then that I use in the guide. I am just using the ones that litecoind generated for me already.

rpcuser=litecoinrpc
rpcpassword= wdYMsDT4E61jCv8xx6zZd6PYF3iZkjD7t3NpuiGpn6X
rpcallowip=127.0.0.1
rpcport=2300
daemon=1
server=1
gen=0

I understand that some of these .conf settings are redundant for litecoin, however in the past I have ran into certain crypto-currencies that did not allow localhost to connect, etc… Just thought this was the best overall config for a multitude of scrypt coins since the users following this guide are probably not setting up a litecoin pool. I also changed the rpcport, which is just a simple security measure I like to take.

If you are setting this up for a PoS (Proof of Stake) currency ensure that you put “staking=0” into the config otherwise your miners may not be able to withdraw their matured coins if they start staking.

The default listen port for litecoin is 9333.

Now that you have updated the litecoin.conf file, go ahead and click on the floppy disk icon in the top left of the WinSCP Editor.

Now that we have setup and saved the config file, let’s get back into ssh (putty) on your user that you created earlier.

cd
cd litecoin/src
./litecoind

You should get a message that states “Litecoin server starting” if for some reason you can’t get out of that command simply press Ctrl+C in putty and it’ll fix it.

Now let’s make sure it’s updating.

./litecoin-cli getinfo

You should see a bunch of info that looks like this:

Run that getinfo command several times, and you should see the “blocks” number updating everytime you run that getinfo command.

The wallet should be fully updated by the time this guide is over, however if you are quick or unsure simply run the getinfo command again and compare the block number to http://explorer.litecoin.net/ if the block number matches what’s on that site then you are good to go.

Now let us set the crontab so that the litecoin daemon (litecoind) will always start on boot.

crontab -e

Select “2. /bin/nano <—- easiest”

Use your arrow keys to scroll down to the bottom of the crontab.

Add this line below the # symbols.

@reboot ./litecoin/src/litecoind

Should look something like this:

Press Ctrl + O to save and Ctrl + X to exit

The Litecoin daemon will now start on boot.

Last thing we need to do is get a new address for our litecoin wallet.

./litecoin-cli getnewaddress

An address will show up, please keep record of this address. We will be using it later in the guide.

Mining Pool Setup

Now we are at the part you have been waiting for, actually setting up the mining pool. As mentioned earlier we will be using uNOMP for this. uNOMP already has the stratum server, webpage, payout system, and much more built into it.

You should have Putty and WinSCP up and running, you are logged in as your new username on Putty and root on WinSCP.

Download and Update uNOMP

cd
git clone https://github.com/UNOMP/unified-node-open-mining-portal.git unomp
cd unomp
sudo npm update

Main Configuration

cd
cd unomp
cp config.json.example config.json

Now let’s open up WinSCP.

Navigate to /home/username/unomp

Right click on config.json and select edit

Find “website”:

Underneath website, find “host”: and change the “0.0.0.0”, to your VPS IP

Save It!

Here is a picture example, what I had you change is highlighted in yellow. I used a fake IP but please use your actual IP.

The rest of the default settings in the config.json will work, however it is recommended you open it up on WinSCP after this guide is over and change things like your site title, admin password, stratum host, etc… For right now we will be using the default config settings to make the guide easier to follow.

Pool Configuration

Your asking, what do you mean by pool configuration? I thought we were doing that! Well yes, you are. However, the way the uNOMP works you can have multiple pools running on one instance. For this pool configuration portion of the guide you will be setting up the Litecoin pool. So if you want another pool for your currency of choice in the future, you can add another pool config into the pool_configs folder and you will have another pool running for a different currency (as long as you setup the coin daemon, make sure the coin.json is in unomp/coins/ and the settings are correct in the pool config).

cd
cd unomp/pool_configs
cp litecoin.json.example litecoin.json

Now let’s open up WinSCP.

Navigate to /home/username/unomp/pool_configs

Right click on litecoin.json and select edit

Find “enabled” and change it to true,

Find “auxes”: and delete everything inbetween the [  ], if you do not understand there will be pictures below.

Find “address”: and place that address we saved earlier from the litecoin daemon setup.

Find “paymentInterval”: and change it to 30,

Find “minimumPayment”: and change it to 0.01,

Find “daemon”: and underneath it find “port”: and change it to the user from your litecoin.conf (see litecoin daemon setup)

Find “user”: and change it to the password from your litecoin.conf (see litecoin daemon setup)

Find “password”: and change it to the password from your litecoin.conf (see litecoin daemon setup)

Scroll down to “daemons”: after ports and configure your litecoin daemon (same info as the past 3 steps)

Save It!

Here are picture examples, everything I had you change is highlighted in yellow.

Start your Mining Pool

Now it’s time to start everything up, fingers crossed!

cd
cd unomp
sudo node init.js

If you got an error somewhere, the first thing I suggest is while in the unomp directory, do a quick “sudo npm update” then try again. If it does not work, then read through the guide again and try to spot any mistakes. If that does not work, then use a search engine to lookup your error. Odds are there is a solution for it on github or somewhere else.

Now let’s see if your webpage is working, use your web browser and go to http://yourvpsip


Now fire up your miner, I am not going to go into specifics about setting up cgminer or what have you. If you don’t know how to setup a miner, you probably should of researched that long before you attempted to setup your own pool.

Details for your miner:

stratum+tcp://yourvpsip:3032
-u ltcpayoutaddress
-p anything

Open up SSH Terminal (Putty) that you used the command “sudo node init.js” in. You should see that your LTC address was authorized, should look something like this:

Overtime you will see accepted shares. You can also look at the statistics on your uNOMP webpage.

Now that you verified everything is working, go ahead and open up the Putty window again and “Ctrl + C” to stop the pool for the time being.

Install Forever

Forever will make it so you can start a nodejs application (unomp for instance) and close your SSH client (Putty) and it will still remain running.

cd
cd unomp
sudo npm install forever -g

Forever is now installed, now let’s run your pool.

sudo forever start init.js

You can now close out of Putty and your pool will keep on running.

You may want to read up on forever on their github page, https://github.com/foreverjs/forever. You can use forever to log all outputs of uNOMP, which will make life much easier if you run into an issue later on. You can simply read the logs and find the error.

If you want to stop uNOMP, simply go to the unomp directory again as your user and type:

sudo forever stop init.js

Conclusion

Congratulations if you completed this guide successfully, it is not an easy task especially if you are a novice with mining pools and linux. Remember that the best way to learn something is just to mess with it, and see what you can do. Push your mining pool to it’s limits, edit the software, mess with the database, etc… These things will make you more knowledgeable. I did not get to where I am at from simply following guides.

You can edit the actual uNOMP website by going to /unomp/website/. If you have a basic knowledge of HTML you should have no issues, the website is still in early development. Please remember that this guide has not gone over the security aspect whatsoever. You need to secure your VPS! There is plenty of guides about this on the internet.

If you have any issues, please review the guide again and make sure you have not missed anything before you start asking questions. It is a huge guide and you can easily miss a step. Also, search engines are your friend.

I get asked a lot about what sort of server power is required to run a mining pool. Based off of the scrypt algorithm, you want about at least 1 CPU Core and 1GB of Memory per 1 GH/s to be on the safe side. This is not including at least 1 CPU Core and 1GB minimum to run your frontend (website), which will also fluctuate depending on the amount of traffic. Internet connection wise, you want at least a 10Mbps port. Most VPS or Servers that you can rent usually have at least a 100Mbps port now-a-days. I would highly recommend SSD drives, especially if you plan on going over 1 GH/s on your pool. Mining pools love to use a lot of IOPS.

I would like to thank the developers that made  uNOMP. I had to cross-reference their guides multiple times to make this one. Please check them out on Github, and donate to them if you are using their software.

uNOMP.org
uNOMP Github

You are free to use my guide whichever way you want, just please give credit to my site BlockGen

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– http://www.cryptodirect.cf  &nbsp;
– BTC, LTC, FTC, PPC, NVC, WDC, XPM, IFC, DGC, ANC, QRK, ZET, NET, FRC

Cheap Miners – Cheap ASIC miners and accessories   
– http://www.cheapminers.com  &nbsp;
– BTC, LTC, XPM

Dahms Weinversand – German Wine Home Delivery   
– http://www.dahms-weinversand.de

   
4:19 Store   
– http://www.419store.com&nbsp;

  
Crypto Game Keys   
– http://www.cryptogamekeys.com  &nbsp;
– BTC, LTC, NMC, PPC, NVC, WDC, XPM, IFC, KGC, RED, ORB, BQC, CGB, DVC, CAP, DGC, GLD, SXC, ADT, MEC, QRK, ZET, NET, FRK, COL, SBC

VPS City   
– http://www.vps-city.com  &nbsp;
– LTC, PayPal Passthru

Thermostats, actuators and controllers   
– http://www.thermostatenshop.nl  &nbsp;
– BTC

Electric heating appliances   
– http://www.budgetheat.eu  &nbsp;
– BTC

Romer and 2HEAT far infrared panels   
– http://www.infraroodpanelen.eu  &nbsp;
– BTC

Outdoor- and ramp heating   
– http://www.opritverwarmingen.eu  &nbsp;
– BTC

Ceramic heating elements   
– http://www.keraheat.com  &nbsp;
– BTC

Distinguished Imports   
– https://distinguishedimports.com  &nbsp;
– BTC, LTC, PPC

GameCardVN   
– http://gamecardsvn.com  &nbsp;
Verbena Products – Family owned online store specializing in bringing our customers high end Health and Beauty products at very competitive prices.   

– https://www.verbenaproducts.com  &nbsp;
– BTC, LTC, PPC

Cryptocoin Stuff!   
– http://www.cryptocoinstuff.com  &nbsp;
– BTC, LTC, FTC, NMC, PPC, NVC, WDC, TRC, XPM, IFC, KGC, RED, ORB, BQC, CGB, DVC, CAP, DGC, GLD, YAC, SXC, ADT, MEC, ANC, QRK, ZET, NET, FRK, COL, SBC, FRC

Retro Towers   
– http://www.retrotowers.co.uk  &nbsp;
– BTC, LTC, FTC, NMC, PPC, NVC, WDC, TRC, XPM, IFC, KGC, RED, ORB, BQC, CGB, DVC, CAP, DGC, GLD, YAC, ADT, MEC, ANC, QRK, ZET, NET, FRK, COL, SBC, FRC
VPS4ME   

– http://vps4.me  &nbsp;
– BTC, LTC, FTC, NMC, NVC, WDC, TRC, XPM, IFC, KGC, RED, BQC, CGB, DVC, CAP, DGC, GLD, YAC, SXC, ADT, MEC, ANC, QRK, ZET, NET, FRK

HostClub   
– http://hostclub.me

   
WaterIdo – Healthy Water Revitalizer   
– http://waterido.com  &nbsp;
– BTC, LTC, FTC, NMC, PPC, NVC, WDC, TRC, XPM, IFC, KGC, RED, BQC, CGB, DVC, CAP, DGC, GLD, YAC, ADT, MEC, ANC, QRK, ZET, NET, FRK, COL 

  
Sarasota Slot Machines   
– http://sarasotaslotmachines.com  &nbsp;
– BTC, LTC, IFC, MEC, PayPal Passthru

GRKreations Direct   
– http://grkreationsdirect.com  &nbsp;
– BTC, LTC, FTC, NMC, PPC, NVC, WDC, TRC, XPM, IFC, KGC, RED, BQC, CGB, DVC, CAP, DGC, GLD, YAC, SXC, ADT, MEC, ANC, QRK, ZET, NET, FRK, COL, SBC, FRC, PayPal Passthru

Mining Hardware   
– http://www.mininghardware.co.uk  &nbsp;
– BTC, LTC

DuinoBits – Arduino kits (UK & Europe)   
– http://www.duinobits.com  &nbsp;
– BTC, LTC

Johnsbay Flooring Co. – Flooring Material including Carpeting, Wood flooring, Laminate, Tiles.   
– http://www.johnsbay.com  &nbsp;
– BTC

Hash Rate Store   
– https://www.hashratestore.com  &nbsp;
– BTC, LTC

Coin Gas – Steam game codes for alt coins   
– http://www.coingas.com  &nbsp;
– BTC, CAP, DGC, FTC, GIL, LTC, NVC, PPC, WDC, CGB

sauce4coins   
– http://sauce4coins.com  &nbsp;
– BQC, BTC, LTC, BTB, CGB, FTC, CAP, VNC, DGC, XPM (and others if you email them)

BottleCaps Store – Itunes cards and World of tanks tokens   
– http://bottlecapstore.weebly.com  &nbsp;
– CAP’s and LTC – Canadian Orders for Itunes only

cryptosextoys   
– http://www.cryptosextoys.com  &nbsp;
– BTC, CAP, DGC, FTC, LTC, NVC, PPC, CGB, SXC

dailybit – Daily special something new everyday
– http://dailybit.net  &nbsp;
– BTC, LTC, XPM, FTC,CAP, IFC, WDC, NVC, NMC, TRC, KGC, PPC, RED, STR, WDC, Peercoins and Paypal 

REDCOINSHOP – Herbal pills remedies   
– http://REDCOINSHOP.com  &nbsp;
– RED

pythonpills- Male enhancement pill   
– http://pythonpills.com/red  &nbsp;
– RED

bitcoinprbuzz – Press Release services for crypto projects – Copy Writing and content creation – Business consulting   
– http://bitcoinprbuzz.com  &nbsp;
– BTC, DVC,BTC, CGB, LTC and FST

finite by design – Coins, Pendants etc   
– http://www.finitebydesign.com  &nbsp;
– CGB

cryptothrift – Online Thrift Shop   
– https://cryptothrift.com   &nbsp;
– BTC, LTC

Litehosting- Web Hosting   
– http://Litehosting.org  &nbsp;
– BTC, LTC, NMC, XPM

ltcasics – All kinds of gift cards   
– http://ltcasics.com  &nbsp;
– LTC
Altcoin TIP

   
– http://reddit.com/r/ALTcointip  &nbsp;
– BTC, LTC, PPC, NMC, FTC, and XPM

 DirectVoltage – alternative energy retailer 
– http://DirectVoltage.com  &nbsp;
– BTC, LTC, FTC, PPC

Sex Stories   
– http://erotica4sxc.tk/about-2  &nbsp;
– SXC

Porn Database   
– http://www.porndatabase.co.uk  &nbsp;
– SXC

3D Porn   
– http://www.lynortis.com/alt-coins.php  &nbsp;
– SXC

coinaxis   
– https://coinaxis.com/  &nbsp;
– LTC

dvc4giftcards – Giftcards   
– http://dvc4giftcards.us  &nbsp;
– DEV

Bitcora – Bitcoin templates and themes
– https://bitorca.com

   
Epawnatl- Pawn Shop   
– http://Epawnatl.com  &nbsp;
– FRK, BTC

Etsyshop   
– http://www.etsy.com/shop/InnovoDesign  &nbsp;
– DOGE, IFC, COL,LTC

Open Source Solutions   
– http://www.iquidus.co.nz  &nbsp;
– BTC, MEC, LTC, Earthcoins

LEALANA PHYSICAL LITECOINS…and BITCOINS
– http://www.lealana.com
– LTC

Evonym
– http://evonym.us/
-BTC, LTC, TRC, PPC.

Minecraft Server
– https://alt-co.in/minecraft/
– GME

Sexslam
– http://sexslam.com
– RED

All Things Luxury
– http://www.allthingsluxury.biz/
– BTC, LTC

7 Pay In – Pay for mobile and ISP services/ecash/WoT/Steam/whatever
– https://7pay.in/
– BTC, LTC, CL and NVC

CryptFolio – CryptFolio lets you keep track of your cryptocurrencies
– http://CryptFolio.com
– BTC, LTC, CGB, XPM, paypal

Tagbond.com – Merchant site hosting
– http://tagbond.com
– BTC, TAG
– LTC

– BTC, LTC

Dog Training – French pet dog trainer and behaviorist.
-www.psychodog.eu and www.psychodog.be
-DOGE
– EAC

BitCoinPINS!!
– http://www.bitcoinpins.com/
– EAC

Polish SEO company
– http://dodawanie.com/
– EAC

FlightSchool! Commercial pilot and flying instructor
– http://www.paul-bradley.com
– EAC

ribbit.me
– http://ribbit.me

The list is always changing as the sites can go down or new ones might apear !!!