Cardinals of the Holy Roman Church – Biographical entries of the 16th to the 21st century cardinals and of the events and documents concerning the origin of the Roman cardinalate and its historical evolution
Marian Apparitions Pages – Hosted by the University of Dayton, includes statistical data, FAQs, bibliographies and ecclesiastical information.
Papal Encyclicals Online – Guide to online papal and official documents of the Catholic Church (not Vatican-affiliated).
Patron Saints Index – Information on topics with patron saints, and profiles of those saints. Profiles have portraits, biographical information, areas of patronage, prayers, links to related sites, readings, etc.