Summer, with its more leisurely pace, is the perfect time to become immersed in the Bay Area's literary scene. A few links to local readings and events follow, as a starting point:
The San Francisco Chronicle lists readings and plays throughout the Bay Area: http://www.sfgate.com/performance/.
Poetry Flash’s site announces poetry readings and open mics throughout California: http://www.poetryflash.org.
San Francisco State has diverse literary and artistic events sponsored by the College of Liberal & Creative Arts (http://creativearts.sfsu.edu/events), and the campus's Poetry Center has its own roster of readings (www.sfsu.edu/~poetry).
The Berkeley Repertory Theatre has high-quality events -- and offers student discounts: www.berkeleyrep.org.
Independent bookstores in the Bay Area tend to feature readings. Books Inc., for instance, which has bookstores throughout the Bay Area (including several in San Francisco), holds numerous events: www.booksinc.net/event.
Alternatively, readings at The Booksmith, on Haight Street, sometimes feature clowns! Check for “Literary Clown Foolery” ($10), or any of their many free readings, at http://www.booksmith.com/