Here are two interesting tools that I found on a couple of the blogs I am subscribed to:
Second up, is Talk Digger, a new app by Frederick Giasson. Talk Digger is an engine that allows you to search on a specific URL and see whos talking about it in the blogosphere. Its a meta search engine that basically asks all of the major engines “who is linking to this URL?” You can then see the results in a comparison format. Nice job Frederick. Good stuff all around. Found this one per Scoble.