Collin and I found eachother here on Hacker News. I wanted to create a Twitter buzz tracker for the special IL election to replace Rahm Emmanuel in Congress. Let us know what you think.
Yes I made this. I don't remember quite how I found OpenCalais. I found it almost a year ago.
When somebody posts a relevant tweet with a link in it, I run the text on the other side of the link through Calais to pull out quotes. Some Tweets have a "Preview Article" link that expands the tweet to show those quotes.
I'm also using Calais to catch onto trending topics.