The network organizations* I recommend you looking into in the Bay Area are:
Edsurge (www.edsurge.com) - Best news site for the latest developments in education technology and since they're in media, they know everybody.
SF Edtech Meetup (http://www.meetup.com/sfedtech/) - Hosted by EdSurge and a good place to meet people face-to-face.
Startup Weekend EDU (now part of 4.0 Schools) (http://4pt0.org/programs/startup-weekend-education/) - One team member is out in the Bay Area, John Baldo in Oakland. A ton of people who get started in the space go through a Startup Weekend EDU, and the best mentors in the space are also in that network.
Imagine K12 (http://www.imaginek12.com/) - Best in class early stage edtech accelerator. They occasionally host events that are open to the public and a great place to mingle.
Kapor Capital (http://www.kaporcapital.com/) - One of the most active investors in education technology. They're probably a later stage contact for you. Do some more research before reaching out to them.
You can begin your research and networking there.
*Network organizations are those that are in the business of knowing everyone. For network organizations in NYC, for example, look at the Getting Started Guide at #NYCEDU (www.nycedu.us/gettingstarted).