Favrd is a site that posts the day's tweets that other Twitter users have marked as their favorites. I've often silently wished for a best-of Twitter updates aggregator, similar to the best-of section on Craigslist. There's a lot of humor on Twitter, but also a lot of irrelevant stuff, which makes sorting through dozens (or hundreds) of tweets bothersome.
There's a place on Favrd where you can enter your Twitter name to have your feed monitored, but some profiles are already being watched. Click through the gallery to see some of today's tweets from Favrd.