How about recommendations for reading, given someone's interests? Both for articles and comments. That is probably a startup in itself, for web discussion boar

How about recommendations for reading, given someone's interests? Both for articles and comments. That is probably a startup in itself, for web discussion boards in general. (The startup would probably follow the present trend of giving it away and selling eyeballs to advertisers; this system would lend itself to analysing interests of the customers, too...)