Association for Women in Computing
http://www.awc-hq.org/
National membership organization with local chapters that offers online newsletters, local networking opportunities, and mentor/mentee programs.

Grace Hopper Conference
http://gracehopper.org/2007/
Annual national conference in which more than 1000 women in computing in academia, industry and government come together for research and discussion

Women in Cable & Telecommunications—
San Francisco Bay Area Chapter
http://www.wictnorcal.org/
Bay Area chapter of WICT National membership organization. Offers networking opportunities, local and national events and programs and an annual mentoring event.

Women in Technology International
http://www.witi.com/
International membership organization with networking, WITI Marketplace, Career services/search, national conferences and regional events, publications and resources, small business programs, research, and bulletin boards

Women in Telecommunications
http://www.womenintelecom.org/
Non-profit organization of mainly women from the San Francisco Bay Area who meet regularly for informal meetings to educate themselves on industry trends and to network with colleagues. Includes multiple yearly panel discussions and mentorships.