Twitter account management tool that lets you maintain an active list of friends and followers, and find interesting people over Twitter. Uses the three step Flush - Grow - Reciprocate features to manage your account.
TweetMinus is a browser extension that notifies you when people stop following you on Twitter. No more wondering if people are unfollowing you. Now you will know. TweetMinus displays your results on Twitter.com, so that you don't have to go to another site.