I live in the Bay Area so I love sfwiki because you can add information and get feedback. It just started being developed but I love the idea of having locals tell me about their favorite places and all that inside information that you get from people who live somewhere.

Like second china town. Locals say there are at least 3 different "chinatowns" in San Francisco- my favorite is Chinatown 2 on Clement St. Yum!

SF Gate and Yelp are really good, too, whether you live here or are just visiting.