Orange County MultiMedia Association
- Promotes multimedia arts and technologies. Based in Anaheim, but with SIG (Special Interest Groups) meetings around the county. Site includes "Tips and Tricks" library, classified advertisements, meeting directory, and biographies of the Board
- http://www.ocmma.org

Orange County IBM PC Users' Group
- Meets the second Tuesday of each month in Fullerton. Includes monthly newsletter.
- http://www.orcopug.org

North Orange County Computer Club - Mac SIG
- Orange, CA. Membership information and user group store.
- http://www.noccc.org/sigs/mac/

Orange County Delphi Users Group
- Contains news items, top downloads, a message forum, voting polls, articles, and book reviews.
- http://www.ocdelphi.org/

Palmia Computer Club
- A computer club in Mission Viejo, California offering workshops, tutorials and personalized training for new users.
- http://palmia.org

Orange County Macromedia Users Group
- Features monthly meetings containing tutorials and discussions on the use of Flash, Director, Dreamweaver, and other Macromedia technology
- http://www.ocflash.com/

Orange County Linux User Group
- Non-profit, vendor-independent organization in California. Installation help, demonstrations, meetings, news.
- http://www.oclug.org/

Orange County Java User Group (OCJUG)
- California group information, includes meeting history, directions, mailing list, and job forum.
- http://www.ocjug.org/

Orange Coast IBM PC User Group
- Non-profit all-volunteer organization, formed in 1985 and located in Costa Mesa, California. Provides information on meetings program guide available in Adobe Acrobat format.
- http://www.ocipug.org/

Orange Apple Computer Club
- Orange County, CA. Offers a meeting schedule, book list, newsletter, and member resources.
- http://www.oacc.org/

North Orange County Computer Club
- Large computer user group with a wide range of special interest groups. Meets the first Sunday each month 9:00 a.m. til 4:30 p.m. at Chapman University in the city of Orange, California. Usually at least one factory sponsored presentation at each monthly
- http://www.noccc.org/

Leisure World Macintosh Users Group
- Laguna Woods, CA. Membership information, editorials, officers, news, and links.
- http://www.lwmug.org/