Ha ha Wikitravel
Okay, so I'm actually tempted to write up a big article for wikitravel. Happy, Evan? I'm gunna sketch out a "Bay Area Commuter Rail" tour, since the BART/Metro system is really its own region with its own routes, access points, sights, and Imaginary Geography.
I live in a neighborhood of Oakland that's 20 minutes from downtown SF by BART, and go to school in a part of San Francisco that's also 20 minutes from downtown. I tend to think of things in terms of their transit stations, much the way people in LA and New Jersey think of freeway exits.