twittercounter is a web app that allows users to gather information about their (or anyone’s) number of followers.

Features:

• easy to use tool to search for follower numbers
• historical, trending and predictive information about follower numbers

The Good:

twittercounter is a good tool to get  a variety of statistics about your follower numbers for yourself or any other Twitter user. In addition to historical and predictive information you can also get a twittercounter badge for your blog, send tweets about your twittercounter info and view lists of top users.

The Not-so-Good:

Just about the only odd thing we could find about twittercounter was that sometimes, there appears to be a slight delay in getting accurate stats on follower numbers. If you care about absolute accuracy, then that could be a problem.

Tweetwave.com rates it: ♦♦♦