Social Security. A chance to calculate your estimated monthly checks, benefits you might receive at various claiming ages, and the effect of working on your payments.
Medicare. The skinny on what Medicare covers, doctors in your area, and various prescription drug plans.
NIH Senior Health. A large-print health information site where you can read up on your medical conditions (or have them read to you).
Benefits checkup. The place to find out if you qualify for help with the costs of groceries, prescription drugs, Medicare premiums, healthcare, utility bills, and in-home services.
AARP. Background on the health, money, and lifestyle issues facing seniors.