Northern California's largest lesbian, bisexual, and transgendered community center. Classes, workshops, sports, support groups, addiction outreach, meeting space, volunteer resources and youth programs. Over 140 events monthly. Home to Sisterspirit Bookstore, Moonstruck Library and Archives and Lavender Liquids Espresso Bar.

DAIR (Documentation of AIDS Issues and Research) maintains categorized collection of over 150 Lesbian & Gay Books and Magazines available at the Eureka Valley Harvey Milk Memorial Branch Library.

The Gay & Lesbian Historical Society of Northern California collects, preserves and disseminates materials related to local gay & lesbian experience. Also sponsors public programs and workshops on lesbian/gay history.

National Deaf Queer archives

UC Berkeley Queer Resource Center Library and Archives contain materials of interest to scholars seeking to develop lesbian and gay oriented courses as well as research material relating to lesbian and gay studies. QRC also sponsors programs of interest to the bisexual Women's Cancer Resource Center. Library Research and lending library contains books, periodicals and clipping files about cancer and women's health issues. Library will mail out information and answer questions over the phone.