Here are some useful links: 

The Social Security Administration: 

www.ssa.gov

The State of California Employment Development Department (EDD):  www.edd.ca.gov/Disability/SDI_Online.htm

Administrative Law Judges Case Statistics: 

disabilityjudges.com

Social Security Office Locator: 

secure.ssa.gov/ICON/main.jsp

Social Security News:  

socsecnews.blogspot.com

National Organization of Social Security Claimants Representatives: 

www.nosscr.org