TTAGIT от Leigh Akin

TTAGIT allows users to use Twitter to comment over any article you are on and see tweets and Facebook posts made about that article or website. Use it to engage with Twitter users or Facebook users about articles and websites or to see what people are tweeting or posting on Facebook about your own articles or websites.

This is a new way to use Twitter and Facebook and a way to use semantic information about links. TTAGIT also has sentiment analysis about the URL's you are on.