MTV movie blog, they have "twilight tuesdays". Sweet.
If you have never checked out Twilight Moms you should.
The Official Movie Site.
If you have any others you love, please leave a link in the comments. It will help to ease the pain of the 80 some odd days until Book 4, and the I-don't-want-to-even-count-the-days until the movie. And if you haven't read the books, get on it!