The Bay Area IndyMedia web site offers this calendar where you can enter event information directly.
The San Jose Peace & Justice Center offers this calendar.
The Peace and Justice Center of Sonoma County has an events calendar on their front page.
KPFA Radio publishes a list of events at http://kpfa.org/events/.
The Planet Drum Foundation maintains a calendar at http://www.tinyurl.com/GreenCityCalendar.
Media Alliance has a calendar of events at https://media-alliance.org/bay-area-events-calendar/.
The Ecology Center in Berkeley posts an EcoCalendar at https://ecologycenter.org/calendar/. The calendar is also available by email.
One Brick posts a calendar of casual volunteer opportunites in the Bay Area. One brick adds a socializing / networking element to volunteering.
Here is Acterra's Community Calendar of environmental events (mostly on the Peninsula).
The San Francisco Bicycle Coalition posts this calendar of cycling-related events.
Also see these organizations indexed under "calendars".
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