Amador Vintners On-Line: The Amador Vintners' Association provides a map, winery profiles and links, event listings, and tourist information.
BlueWine: California winery directory broken down by region/AVA.
Calaveras Wine Association: Includes links to Calaveras County wineries, a local history, event information, and maps.
California Wineries Mall: Large catalog of wineries.
DrinkWine.com: Links and addresses for wineries all over the state, plus lots of links to wine-related articles.
El Dorado Winery Association: Representing the wineries of El Dorado County. Details of their "Passport Weekend" tasting event, winery list, photo galleries, recipes, and a winery award list.
H. Montanile - A Winery Review: Rates Napa and Sonoma wineries and creates customized itineraries.
Inside Napa Valley: Visitor information, things to do, wineries, dining, shopping, and lodging information.
Napa Valley Vintners Association: Organization of more than 180 local wineries presents a winery finder, regional information, descriptions of winemaking, and event listings.
Not Napa: Guide to Santa Ynez Valley wine tasting routes, accommodations and food.
Paso Robles Wine Country: Facts and figures about one of the fastest growing vineyard and winery regions in the state.
San Diego County Vintners Association: Features information about members along with pictures of their events.
San Luis Obispo Vintners and Growers Association: Promotes the wineries of Edna, Arroyo Grande, Avila valleys and Nipomo in San Luis Obispo County. Contains a winery map, regional history, and event listings.
Santa Barbara County Vinters' Association: Representing the wineries of Santa Barbara county. Appellation information, member wineries, tourism information and a store.
Sierra Wine Guide: Covers El Dorado and Amador Counties, providing maps and articles, along with winery information and links.
Sip In Sonoma: Book promotion site. Included is a background on the Sonoma County appellations and a listing of the wineries and tour companies in the Sonoma County area.
Sonoma County Wineries Association: Representing Sonoma County wineries. Member directory, events, local history and tourist information.
Sonoma.com: Information on the regions of Sonoma and its wineries. Also lodging, restaurants and events.
Steve Manick's California Wine: Information and reviews of the state's wineries, wine basics and links.
Temecula Valley Winegrowers Association: Contains details on member wineries, online purchasing of event tickets, and information about lodging, dining, and local attractions.
TheFineWineGuide.com: Links to wineries, educational resources and travel information.
TotalEscape: California Winery Guide: Listing with map of all of the state's production regions. Direct links to winery sites.
Winegrowers of Dry Creek Valley: Information about Dry Creek Valley wineries, growers, events, and a winery map.