From SFBC:
Ready to try out your first SF2G (SF to Google)? Want to make sure you get there in one piece and without getting lost? Join SF2G for their No Rider Left Behind (NRLB) First Friday Friendly Frolic rides! Depart at 6:30, arrival in Mountain View area ~9:45am. http://www.sf2g.com/nrlb.html for all details