Medicare
http://www.medicare.gov/

What is Medicare?
http://www.medicare.gov/Basics/WhatIs.asp

Who is Eligible for Medicare?
http://www.medicare.gov/Basics/Eligibility.asp

How Do I Enroll in Medicare Part A & B?
http://www.medicare.gov/Basics/HowToEnroll.asp

Top 20 Medicare/Medicaid Questions and Answers
http://www.medicare.gov/FAQs/Top20.asp

Medicare Glossary
http://www.medicare.gov/Glossary/Search.asp

Medicaid CMS
http://cms.hhs.gov