Some Favorites

Business:
SEDCorp
small business development center

Nevada County Economic Resource Council
assistance in business creation, attraction and retention

Nevada City Chamber of Commerce

Marketing:
Google Trends
for viewing trends in industries

Art:
San Francisco Museum of Modern Art
Crocker-Kingsley Art Museum, Sacramento, CA

Friends:
Mary Lou Falstreau, artist
Rick Morrall, artist
Paul Dessau, artist

Fun:
Daily Candy.com
Etsy.com