Foursquare on the Rise on College Campuses (at least in my area)

The number of Foursquare check-ins on college campuses is on the rise this fall. Since starting to use Foursquare in January, I saw how infrequently people were checking in on campuses in the Southern California area (primarily CSULB, CSUF, UCI, Chapman, UCR, and a few others) in the spring. Not so in the first week or two of classes this fall - I have seen many people checked-in on campus at a time, sometimes at multiple places. Also, at CSUF, I've noticed places offering specials and to check-in, typically restaurants, which I don't think I would've seen in the spring. I believe that the rise in Foursquare use may primarily be attributed to the rise in smartphone use amongst students. Granted, there could also be a greater awareness of Foursquare, especially after its first birthday in the spring, or even people seeing their friends' check-ins being sent to Facebook, but for whichever reasons, it's starting to grow on campuses.... Fun :)