BrightKit is one of the newer Twitter tools on the block. If you have multiple Twitter accounts you manage, it is very beneficial. One service that I’m sure will bother some of the elite Twitterati is the function of scheduling Tweets. I’m sure it will be seen as cheating.
A service that I think is cool is being able to track links that you post and seeing how certain Twitter posts perform. Right now it’s in Beta, but later they will begin charging for multiple account set-ups.
The BrightKit.com website has only been around for a little over 2 months and already has a page rank of 5. Pretty impressive.