OK, it is really a just a blog and not an entire site, but it is really good. NY Times US Open Blog is about as close as it comes to actually being there when you can't watch TV. In fact sometimes its better than watching on TV because it sums up the heart of each match really nicely. It kind of reminds me of the inning wrap-ups you can get for Major League Baseball games as ESPN.com. The coverage is insightful as well as enthusiastic.
One bit of advice -- catch the blog this week before it's gone -- at least until next year!