Findlaw, owned by West Group, is the leading free online index of legal materials, with links to off-site resources as well as a great deal of hosted material and tools, including hosted e-mail and the Lawcrawler search engine. The state-specific collections of resources are particularly useful. The resources include Web search utilities, cases and codes, legal news, an online career center, and community-oriented tools.
Hosted by Cornell University's School of Law, the LII is one of the pre-eminent legal resources on the Web, including one of the best arrangements of the Code of Federal Regulations and many substantive resources.
Designed for the legal profession, academia and the public, is one stop source for legal research. Law and Politics is dedicated to finding the most informative and current law related resources on the Internet.
A free (requires registration) service of Lexis-Nexis, the online legal research service. Includes free US supreme court (1790-present) and selected federal and state court (since 1996) searching, forms, and other services.