Wine Country.com is a good starting point for information on each of the major regions of California. This includes lodging, wineries, restaurants, events and things to do. Visit Napa Valley and Visit Sonoma Wine Country are alternative sources for those areas.
Alternatively, California Wine Country Getaways provides self-planning guides for the independent traveller including suggestions on wineries, accommodation, dining options, and detailed driving directions covering all the major wine producing areas.
Wine Tour Operators
Wine Country Tour Shuttle specializes in day tours of the Napa Valley from San Francisco. Their major tour has two versions and consists of a ride over the Golden Gate Bridge, four wineries, a picnic stop, and then a 50-minute relaxing Ferry/Bay Cruise back to San Francisco. They also run a San Francisco city tour and an Alcatraz tour. They are in Yahoo’s top ten wine tour sites.
California Wine Tours provide day tours of four to five wineries in the Napa or Sonoma valleys. Pickup is from major hotels. They also provide private personalized day tours. They are in Yahoo’s top ten wine tour sites.
Beau Wine Tours provide a variety of day tours starting and finishing in Napa, Sonoma or San Francisco. Destinations from San Francisco include Napa, Sonoma, Russian River, Dry Creek and Alexander Valley. Custom tours can be arranged also. They are in Yahoo’s top ten wine tour sites.