When Facebook launched Places, their entry into the location space, the headlines made it seem as if every startup player in the field was about to go extinct. Obviously, that didn't happen. Instead, the playing field has largely stayed the same — though slowly, but surely, those startups are now integrating with Facebook Places in order to get access to Facebook's massive social graph. The latest is Loopt , and they're going deep. With a lot of these location startups, you check-in and you can push that check-in to Facebook. This technically checks you in to Facebook Places as well, but what it really does is create a new object for the place you're at on the other service within Facebook's graph. With Loopt's new integration, you'll check-in to a place and it will find that place on Facebook Places, and check you in there.