Well grabbing coffee is always available, and summer is always a big time for post.  If you have legit FCP skills, especially on the organizational side, you stand a good chance of finding work as a Post PA, Logger, Digitizer, or even Assistant Editor with enough digging.  If you have broadcast credits, a Junior Editor spot might even be possible.  
Craigslist is ok for some work.  I would look at Production Notices LA, realitystaff.com, mandy.com, entertainmentcareers.net, and crew-net.com.  If there is a specific company or post house you want to work at, feel free to give them a call yourself and solicit.  Worst case scenario, they say no.  Can't hurt.
						Eddie Doty