Try www.meetup.com. Here's a link to an unfiltered list of upcoming meetups in SF: http://www.meetup.com/find/events/?allMeetups=true&radius=5&userFreeform=San

Try www.meetup.com. Here's a link to an unfiltered list of upcoming meetups in SF: http://www.meetup.com/find/events/?allMeetups=true&radius=5&userFreeform=San+Francisco%2C+California%2C+USA&mcId=c94101 http://www.meetup.com/find/events/?allMeetups=true&radius=5&...