If you want to donate a bike to a good cause, check out any of the following organizations:
The Crucible – http://thecrucible.org/youth-programs/bike-program/
Cycles of Change (Oakland) – http://thebikery.weebly.com/
Spokeland (Oakland) – http://www.spokeland.org/donate
Street Level Cycles (Berkeley) – http://www.watersideworkshops.org/wb/pages/bikes/bike-donations.php