… and a bunch more stuff. It's also where the Krishna Lunch happens.
As you've probably noticed, the Old Student Center is currently in the midst of construction. This is Phase I Iof a two phase project to (in theory) improve this section of campus. Phase I was essentially adding two new buildings; one a lounge and dining area with a women's center above it, the other a meeting room with LGBT center above it. Phase II is more extensive, knocking down and rebuilding a good chunk of the Student Center. Details can be found here.
For the official site on this area, see the university center's website.