How To Find Out Who Does not Follow You When You Follow Them On Twitter

Follow each other in social networks like Twitter, is one of way to build and improve your network.
If you are a twitter user, to know the people that you are following not follow you back, It is very easy.

Open the address http://www.friendorfollow.com

After friendfollow.com page is open, enter your twitter account name then click Submit, it will show the users that you follow, but not follow you.