Flutterby™! : volunteers of America

Hey, anyone have ideas on how to find non-profits with lots of volunteers who'd like to raise some funds and their visibility among well heeled Bay Area dwellers? We're looking for groups that will staff a rest stop for the 2007 Marin Century/Mount Tam Double bicycle ride in exchange for a donation to their organization. We'll take care of the logistics, they have a fun day in the fresh air interacting with and feeding lots of neat people, their organization gets some cash.

I'm putting together lists to hit with letters from various searches, the MARIN DIRectory non-profit and clubs list, the San Francisco Bay Area Volunteer Information Center, I'm trying to track down all of the local Lion's Clubs, I'll try to hit the Marin Boy Scouts and Big Brothers & Big Sisters of Marin and Napa Counties, but if anyone else has suggestions for finding organizations that would be willing to put together ten or so people that we can count on to show up, and that could use some money, I'm trying to find 'em.