Cornell University Law School, Legal Information Institute - Constitutions and codes, court opinions, courts rules, legal resources for federal and state governments and U.S. territories; Uniform Commercial Code; legal ethics and social security libraries. U.S. Supreme Court Opinions available back to 1990 and generally posted within hours after being issued.

FindLaw - Includes lawyer directory; extensive collection of links to U. S. Supreme Court cases from 1893; the U.S. Constitution with annotations; 50-states legal resources; national, state, and foreign bar associations; other legal organizations; academic law journals; law schools.

Hieros Gamos, Worldwide Legal Directories - A comprehensive legal and government portal to international, national and state governments; organizations; associations; libraries; law schools. Includes over 200 practice areas, law journals, products and services.

International Law Research

Justia

FDSys - Official information from all the US three branches of federal goverment

Law Library of Congress

LexisNexis Law Communities - Provides legal news, commentary, blogs, videos, prodcasts and an extensive collection of treatises.