...in alphabetical order.

American Immigration Law Foundation: http://www.ailf.org/

American Immigration Lawyers Association: http://www.aila.org/

Case Status Service https://egov.uscis.gov/cris/jsps/index.jsp

National Immigration Law Center: http://www.nilc.org/index.htm

Processing Dates: https://egov.uscis.gov/cris/processTimesDisplay.do

State Bar of California: http://www.calbar.ca.gov/

State of California Franchise Tax Board: http://www.ftb.ca.gov/

USCIS Office Locator: https://egov.uscis.gov/crisgwi/go?action=offices

U.S. Citizenship and Immigration Services: http://www.uscis.gov/portal/site/uscis/

U.S. Customs and Border Protection: http://www.cbp.gov/

U.S. Department of State: http://www.state.gov/

U.S. Department of Labor: http://www.dol.gov/

U.S. Embassies and Consulates: http://www.usembassy.gov/

U.S. Immigration and Customs Enforcement: http://www.ice.gov/

U.S. Internal Revenue Service: http://www.irs.gov/

U.S. Social Security Administration: http://www.ssa.gov/

Visa Bulletin: http://travel.state.gov/visa/frvi/bulletin/bulletin_1360.html