The College of Cardinals
- Araldica Vaticana- Brief biographies of all the cardianls from 1198 to 2001 (in Italian) Also includes a list of cardinals as of April 2005.
- Cardinals in the Catholic Church Catholic-Pages.com
- Google Answers A cardinal's responsibilites
- The Cardinals of the Holy Roman Church - biographies of the 17th to the 21st century cardinals and of the events and documents concerning the origin of the Roman cardinalate and its historical evolution.
- Who are the Cardinals? Inside the Vatican
Related: Conclave and Papal Elections