twitter follower problem

How to know who are not follow back on twitter.

 

You can check who unfollowed you or who is not following you on twitter on unfollowers.com or unfollowerstats.com.

 

Thanks. How to make auto follow back when someone follow me.

 

There is a website or application whose is name is notfollow which is generally used to find the users who are following you but not following you back on social networking site like Twitter. It is really a secure application and doesn't required any password.