re.Twit’d
re.Twit’d lets you know what others people on twitter have heard that they think is worth repeating. Tweets are ranked by retweet popularity over several timespans.

Traffic rankings are sourced from multiple sources, if available, for the Twitter application. This includes Alexa, and Compete rankings.
February 14th, 2009 at 1:08 AM
Just came across your blog on Google. Interesting post, you bring up a few good things to think about. Good luck with the blog.