The Official Adam Sandler Homepage. It contains links to the other one's.
I love USA Today's Coverage on Everything. It's TV page contains Reviews and Complete Nielsen Ratings.
Conatins TV listings (obviously) and chats, sports news, and reviews.
My Seinfeld Page! By Itself, It's not much. But it contains links to many sites from Seinfeld Trivia to Seinfeld Syndication. Links to the best sitcom ever!