The California Department of Real Estate is the agency that licenses real estate brokers and salespersons in California.  Its consumer-oriented website is a good source of information about how to protect yourself when buying or selling real estate.

The California Association of Realtors is the trade association for all realtors in California.  Its website is a good source of information about what's happening in the California real estate market (news, prices, trends, etc.).

The El Dorado County Association of Realtors is our local version of the state association.  Click on the "Statistics" link for printable graphs of prices and trends in El Dorado County.