Resources 
Find Solar - Connecting You to Renewable Energy Professionals
California Solar Energy Industries Association (CalSEIA) - California Solar Energy Industries Association supports the widespread adoption of solar thermal and photovoltaic systems by educating consumers, supporting solar legislation and conducting business in a professional and ethical manner.
Northern California Solar Energy Association Home - a non-profit educational organization whose mission is to accelerate the use of solar energy technology through the exchange of information.

Financing & Incentives
Database of Solar Initiatives for Renewables & Efficiency (DSIRE) - a comprehensive source of information on state, local, utility, and federal incentives that promote renewable energy and energy efficiency. Choose one or both databases to search:
California Solar Initiative
Good Explanation of California Solar Initiative Process
California Energy Commission Energy Efficiency Financing - includes loans for renewable energy projects
Federal Tax Credits for Renewable Energy Installations

Articles about financing:
Good Description of a Power Purchase Agreement (PPA) 
Top Ten Solar Loan Sites