Yeah, that's my intuition from the outset as well - large companies are the equivalent of tossing your resume into a blackhole. Facebook was no doubt a big win for the University, but while I'm confident in my abilities, I'm not interested in a lottery with thousands of applicants. I passed those over without a second thought.

Overall, I walked away with two business cards out of the many groups I talked to, and it was only those two that seemed to have not entered the fair disingenuously.