Image of BrightKit
I found this fascinating quote today:
We’ve seen a number of Twitter tools for scheduling future tweets, shortening URLs, and tracking click-thrus. But BrightKit (not to be confused with the location-aware app BrightKite) is the sleekest we’ve seen yet, making it worth a mention.adamostrow, Mashable All That’s New on the Web, Dec 2008
You should read the whole article.