U.S. Supreme Court
Supreme Court Database, Harold Spaeth et al
Supreme Court Individual Personality Estimates, Matt Hall et al
Martin-Quinn Scores, Andrew Martin & Kevin Quinn
Judicial Common Space Scores, Lee Epstein et al

U.S. Courts of Appeals
U.S. Courts of Appeals Databases, The Songer Project
Attributes of United States Appeals Court Judges, 1801-2000, Gary Zuk et al
Ideology Scores for U.S. Courts of Appeals Judges, Michael Giles et al

U.S. District Courts
Federal District Court Judge Ideology Scores, Christina Boyd

U.S. State Supreme Courts
State Supreme Court Data Project, Paul Brace & Melinda Gann Hall
New Data on State Supreme Court Outcomes, Matt Hall & Jason Windett
State Supreme Court Election Data, Herbert Kritzer
Dynamic Ideal Points for State Supreme Courts, Jason Windett et al

Comparative Courts
National High Courts Database, The Songer Project
The Israeli Supreme Court Database, Keren Weinshall and Lee Epstein
Judicial Public Relations of the German Constitutional Court, Philipp Meyer
Media Coverage of Constitutional Court Decisions in Germany, Philipp Meyer
Mixed Judicial Selection & Judicial Review, Lydia Tiede

Criminal Justice System
Private Prisons Data, Anna Gunderson
National Archive of Criminal Justice Data
FBI Uniform Crime Reporting Statistics
Bureau of Justice Statistics Datasets