FEDERAL COURTS:

UNITED STATES SUPREME COURT

Supreme Court (Official Site)
FLITE Database (1937-1975)
Cornell Database (1990-Present)
Supreme Court Rules
Bound Volumes (final version of opinions)

FEDERAL APPELLATE COURTS:
CIRCUIT COURTS OF APPEAL

1st Circuit
2d Circuit
3d Circuit
4th Circuit
5th Circuit
6th Circuit
7th Circuit (This one is cool!)
8th Circuit
9th Circuit
10th Circuit (Recent)
11th Circuit
Fed. Circuit
D.C. Circuit

FEDERAL TRIAL (District) COURTS

N. D. Okla.
W.D. Okla.
E.D. Okla.
Other Federal District Courts

USEFUL FEDERAL LAW LINKS

Federal Rules of Civil Procedure
Federal Judiciary Home Page
Federal Magistrate Judges Association
Federal Courts Law Review
Map of the Circuit Courts (with links)