Aetna:
http://www.aetnaushc.com

Blue Cross Blue Shield:
http://www.bluecross.com

Cigna:
http://www.cigna.com/

Kaiser Permanente:
http://www.kaiserpermanente.org

Prudential: (Now Part of Aetna)
http://www.aetnaushc.com/pruhealthcare

Childrens Health Care:
(Great Site for Children Benefits)
http://www.hcfa.gov/init/children.htm

Medicare:
http://www.medicare.gov/