Unfollowing people on Twitter is not as easy as a push of a button, that is, if you don’t want to inadvertently unfollow peeps who are following you. Twitter does not tell you who you are followng who is NOT following you back.
Tweepsect is a FREE tool you can use to discover
1. Who you are following who is following you
2. Who is following you, who you are not following you back
3. Who you are following who is not following you back.
To access Tweepsect follow this link. www.tweepsect.com