TweetScan – another really useful third party web app that someone built on top of twitter. tokintrader tipped me off to it in a comment to my ana marie cox post on tumblr. it simply searches twitter for conversations about something. here’s the recent discussions about Jerry Yang on twitter. and the best part is that they have a link at the top of the page to add it to the firefox search engines. i did that and plan on using tweet scan when i want to know what’s going on in real time. i generally search blogs when i want to search "real time" information, but the blog indexes are often too slow. twitter should be a great real-time resource.