Air: The closest major airport is San Jose. Southwest Air has reasonably priced flights from most major American cities–with frequent sales you can register to be notified about by email. Prices tend to be lowest on Tuesdays and Wednesdays.
Car: Driving directions can be found at: http://www.mountmadonna.org/directions/index.html.
Van/Bus: Mount Madonna Center has vans and buses that can pick people up from San Francisco, Oakland, and San Jose Airports, at rates determined by the number of people riding. We hope to schedule buses that will make ground transportation costs minimal for those arriving at San Jose at peak times.
Conference Registration Co-Chair Irene Papoulis will be co-ordinating transportation arrangements. If you send her your arrival and departure times (including airport and flight numbers), and whether you plan to rent a car or be driven to the conference site, she will either link you to other participants with whom you can drive or arrange bus and van arrangements with drivers from Mount Madonna Center. Please write to Irene at firstname.lastname@example.org after you make your travel arrangements. She will co-ordinate car rides as they become available and van/bus rides with Mount Madonna Center in early May.