Marin Magazine just recently published a Bay Area Private School Guide in the September 2010 issue. The full guide provides articles on how to select a school, preparing for a “shadow day,” tuition shock and a listing of private schools in Marin.
You can buy the full guide on their website for $2, however the Marin private school catalog is available on their website here… http://www.marinmagazine.com/Marin-Magazine/Private-School-Guide/index.php/county/Marin/ . You can view by the various communities in Marin, tuition range or affiliation.