When The Google isn’t good enough and you need Good Value (i.e. not full-service & not expensive) for full-text, all-cases or statutes (or almost all) legal research database searching:
1) Law Library of Congress: How to Locate Free Case Law on the Internet
2) Georgetown Law Library’s Free and Low Cost Legal Research Guide
3) University of Washington Gallagher Law Library’s Low-Cost Legal Research Services on the Web
4) Oregon Legal Research Blog posts: