Software that lets you unfollow those who don't follow you back. Similar to twitter Karma

• Tweet My Karma Twitter Tool Application 1.0.0.0
  Control your tweet karma, remove nonfollowers so that you can follow some more. Dont get stuck on the 2000 following limit. Remove those who do not follow you back and replace...

• TweetyBot 1
  At this time, the features listed below have been completed but are not part of the current release candidate

• Twitilla 1.02.1
  Follow other Twitterers, or Unfollow Twitterers instantly. Twitilla's smart - it calculates the likelihood of being followed or unfollowed into a percentage rate. Features like filtering followers & friends, and account linking make Twitilla a...

• eXTweet 1.0
  eXTweet is an application for online promotion on the social networking site - Twitter

• Twitter Adder, Get Folowers, Twitter Folowers, Friend Adder 2.60
  Twitter Adder, Get Folowers, Twitter Folowers, Friend Adder # Manage Accounts: Manage unlimited twitter accounts; # Follow Friends: Follow a list of twitter friends; # Add Friends: Add twitter friends to your account; # Remove Friends: Remove friends who aren't following you; # Increase Twitter and Site Traffic to your event, charity,...

• Follow Back Twitter Accounts Tool 1.1.0
  Twitter users who follow lots of people tend to have lots of followers themselves

• Twitter Clone 2010
  Twitter Clone 2010 - Start Your Very Own Twitter Clone Website

• Get Twitter Followers 1.0.55
  Tweet Whistle - Increase your targeted Twitter followers with an affordable Twitter marketing solution that can also help automate your Twitter posts, send follows, unfollows, messages, and much more