- Varieties of Democracy is a collaborative project to produce indicators of democracy for all countries from 1900 to the present.
- The Comparative Law Project
- Comparative Constitutions Project
- The TIESR dataset contains quantitative information on the constitutional status of economic and social rights in developing countries.
- Check out The Qualitative Data Repository.
- The Transitional Justice Research Collaborative website presents data on transitional justice mechanisms (human rights prosecutions, truth commissions and amnesties) in 86 countries around the world.