I don’t think you checked the excerpt box. Note to others - there are many other California wine regions discussed at the source link.
Having lived in Solano County (12 miles from Napa)my wife and I did more of our fair share of winery tours in the area. Some comments (if I may) for mid price range ($15-40) wine fans:
Napa Valley (1.0 hrs from SFO)--
First Stop: Mondavi and join their club. That will get you free tastings at 12-13 area wineries.
Splurge -- Darioush
Best View - Signorello
Restaurant of choice: Hurley's in Rutherford (no corkage) and 'wild' game regularly on the menu (Elk, Boar, Venison).
Better advice though is to go to Healdsburg (1.5 hrs from SFO) or Sonoma (1.1) min. west)less crowded and friendlier.
Best Advice: Go to Paso Robles (3.0 hours drive south) Up and coming wines, fair prices, many wineries and a few very good restaurants. Try: Jack Creek, Margene, Daou (Gorgeous view and wines!)