If you want information and some relatively discourse don't go to Westeros. It would be one of the darkest, nastiest corners of the web. A better place is The Tower of the Hand. Aside from the discussions about the show and the books, it's also got an online encyclopedia, which is handy. If you just want to discuss the show try Winter is Coming, that was set up purely for that purpose. Going to be interesting to see how they handle the changes from the books next season.