The Museum of the Sonoma Valley Historical Society:

http://depotparkmuseum.org/

Historian of Sonoma:

http://www.lynndowney.com/

History collection at the Sonoma County Library:

http://heritage.sonomalibrary.org/

The art of Michael Acker

http://www.mca-studios.com/valley.html

The Museum of Jurassic Technology

http://www.mjt.org/