InTune Bluegrass Events in Southern California
- InTune is the home of the Bluegrass Association of Southern California and the San Diego Bluegrass Society. Calendar listings of Southern California Bluegrass events and festivals, band listings and bluegrass resources.
- http://www.socalbluegrass.org

California Bluegrass Association
- Promoting bluegrass throughout California, and organizers of the Grass Valley Bluegrass Festival each Father's Day weekend.
- http://www.cbaontheweb.org/

Redwood Bluegrass Associates
- A non-profit organization promoting bluegrass in the San Francisco Bay area.
- http://www.rba.org/

Northern California Bluegrass Society / Santa Cruz Bluegrass Society
- Promoting bluegrass music in the Bay Area and throughout Northern California. Includes event calendar, directories of bands, venues, teachers, and radio shows, reviews, membership information, message board and mailing list.
- http://www.scbs.org/

Santa Clara Valley Fiddler's Association
- Non-profit organization dedicated to preserving old time, bluegrass and gospel music as played on the fiddle and other acoustic stringed instruments. Includes event calendar and membership information.
- http://www.scvfa.org/