Here is a list of resources I have found very helpful in navigating the educational system.
This list is updated often, so please check back periodically for new items.

US Department of Education info on IDEA Act

US Department of Education info on Section 504

FAPE Defined (Free and Appropriate Public Education)

US Department of Ed on Least Restrictive Environment

California Department of Education: Special Education Division

CA Special Education Timelines

Regional Centers of CA

CAPO Unified Special Education / Student Services

CAPO Community Advisory Committee

CAPO Info on Placement and Services

CAPO Family Resource Center

CAPO Special Education Parent Handbook

Saddleback Unified Special Education

Regional Center of Orange County Comfort Connection Family Resources

South Orange County SELPA Community Advisory Committee