If you have seen a decline in your number of twitter followers, find out who has unfollowed you, by using a simple web app like – whounfollwedme.
Enter your twitter account and it will begin to track who has followed and unfollowed you.
When you visit your dashboard you’ll get a report of your most recent activity. Click unfollowers to see the list of names.
You can also view New Followers and choose whether or not you would like to follow them. Under connections you can see the accounts you follow but aren’t following you back.
The web app is free and has a pro version for more advanced features.
You can tweet to me at @francieblack.