Please review my new site - greaterdebater.com
jackman002: I looked at making a site similar to this about 15 months ago. I found the market to be saturated and hard to differentiate in. There are currently sites that allow both users and experts to post video responses to each other, I find this much more interested then reading a threaded response.That said, it looks like the threads could be improved with some added functionality such as integration with facebook--a picture or two would make the debate seem a little more interesting. Also, how does one "win" and argument, I did not see a ranking system.Final take aways:
-How do you differentiate the site from a news aggregater with comments? 
-UI needs a little more color?
-Maybe a a sidebar that explains the premise of the site.