You have got to do the "Old La Honda" climb near Stanford in the town of Woodside. Look it up on those websites above. It's a short, but legendary climb that's known to everyone in Norcal, and a lot of cycling clubs base their ratings on your "Old La Honda (OLH)" time.
It's not that long (20-30mins to climb it), virtually no car traffic, and beautiful. Also easily accessible and hooks up to other great climbs in the region. Check it out.