Some additional helpful links will be added when time permits. Here is the beginning of the list:
CALIFORNIA ASSOCIATION OF REALTORS® Real Estate Mediation Center for Consumers -- useful for pre-litigation and other mediations of real estate disputes.
Los Angeles Superior Court Settlement Programs for Civil Cases including Vendor Resource List Mediation Programs.
Valley Bar Mediation Center -- for "Resource List" Mediations pursuant to the Los Angeles Superior Court Vendor Resource List Program when the circumstances require low-cost mediations in pending lawsuits before the Court.