When Qwitter was announced ALOT of people jumped on the band wagon, then realized actually it’s quite depressing AND confusing due to the fact that you never really know why people unfollow you. It may just be coincidence that they unfollowed you after that last tweet!

I’m also a big defender of ‘If they want to unfollow don’t question why!’

Here’s another such service if this ring’s your bells TweepleTwak

Along with the normal someone unfollowed you there are also many extras such as Geo Locating, Email alerts, Individual graphing capabilities …

I for one gave up on Qwitter but they are both there as a free service if you want.