Mayor Gavin Newsom’s claim that Foursquare is a San Francisco startup just got a little bit more accurate. Foursquare, which has famously worked out of the Square offices here in SF for quite sometime, has finally bit the bullet and made its West Coast dalliance official today with a

There are a lot of sentiment analysis tools out there to track how people feel about any given topic under the Facebook/Twitter Sun. Newly-launched Amplicate bills itself as an opinion engine for consumers—a place where they can learn what other people really think about products, brands, people, places, and anything else.

You can find out in realtime what are the top movies,