The (in)famous Zagat Guides is soliciting the opinions of San Francisco-Bay Area restaurant goers about their favorite eateries. Participate in the survey and you receive a free copy of the 2008 San Francisco Restaurants guide when it is published. Deadline to participate is April 15th.
Zagat also has surveys posted for LA and SoCal restaurants (deadline 4/22), New York City restaurants (5/13), online gourmet food shops (4/19) and London nightlife and shopping (both 4/29)
Vote (Zagat's term, not mine) at their website here.