TwitPwr Do you use Twitter? If you do check out this new free service that allows you to create short url's (think tinyurl.com) but with a twist. This service is for sending out tweets only. They track the number of clicks that you receive from your "followers' and then gives your account a power rating. Your "power rating" is a combination of the traffic your links generate and also how many others you refer to TwitPwr's service and how much traffic they generate.
If you use Twitter this is one you'll want to add to your Twitter toolbox.