Goldpan Site
- Prospecting Information and Locations along Highway 49 in Northern California.
- http://pweb.jps.net/~goldpan/

Napa Valley Bike Tours
- Bicycle tours with wine tastings and picnics in Napa and Sonoma counties. Or rent a bike and explore on your own.
- http://napavalleybiketours.com/

Jake's Valley Wine Tours
- Specialized tours of Napa and Sonoma regions, including itineraries focusing on historical and family-owned wineries. Includes tour descriptions and contact information.
- http://www.valleywinetours.com

Virtual Guidebooks: California North of the Golden Gate
- Online guidebook features scenic northern California attractions with photographs and panoramas.
- http://virtualguidebooks.com/NorthCalif/NorthCalif.html

Explorer1
- Provides travel information for Northern California and Western Nevada. Area lodging, restaurants, ski resorts, casinos, entertainment and recreational activities.
- http://www.explorer1.com/

Shasta-Trinity National Forest
- Lies within portions of Humboldt, Modoc, Shasta, Siskiyou, Tehama and Trinity Counties. Recreational offerings, weather and highway conditions, environmental news and projects.
- http://www.fs.fed.us/r5/shastatrinity/

Mendocino National Forest
- Includes maps, office locations, vital statistics, and news releases by the Forest Service of the US Department of Agriculture.
- http://www.fs.fed.us/r5/mendocino/

Northern California Attractions Association
- Provides information about amusement parks and tourist attractions in the San Francisco and Monterey Bay areas.
- http://www.sfbayfun.com/

The JB Group - CaliforniaVisitors.com
- Directory for areas of Sonoma County, Wine Country, Russian River, Gold Country and Sonoma Coast. References for dining, lodging, recreation, shopping, and wineries.
- http://www.californiavisitors.com