Twitterless maps where your followers are:
Right down to the city, or even address on the Twitter profile:
Twitterless provides a comprehensive view of your follower list (sorted alphabetically, unlike Twitter):
Then, unlike any application, it can search keywords across your follower list, like “real estate” or “newspaper” to group followers and create group lists. It can also search Tweets across your follower list only – Search.Twitter.com searches across the Twitter universe.
Finally, it rolls in additional functionality found elsewhere like Qwitter to monitor the follower base. And it’s simple to use.