It looks like the San Jose Tech Shop has a monthly Arduino meetup on the 3rd Sunday of each months.. It's one of several meetups held under the the aegis of the San Jose Tech Shop Meetup.http://www.meetup.com/TechshopSJ/
Arduino Show & Tell
Bring your Arduino projects (completed or not) and questions! This is your chance to meet other Arduino enthusiasts and see what others are doing with Arduinos. If you are new to Arduinos and have one, please bring your computer and Arduino. We will help you get started. This is an open and free meet up.