Wineries and Vineyards in the area and beyond...
General info and overview: http://www.winecountry.com/
Sonoma wineries: find listings and maps at http://www.wineroad.com/ and http://www.sonoma.com/ and http://www.sonomavalley.com
Check out the Farmhouse Inn Winery Partners in the Russian River Valley
Napa wineries: http://www.napavalley.com/ (with ~400 wineries packed into that tiny valley try to avoid the Napa Valley on weekends)
Mendocino County wineries: http://www.mendocino.winecountry.com/ and http://www.mendowine.com