Archdiocese of the Internet - Detailed biography of Aquinas' life and work.
Catholic Encyclopedia - St. Thomas Aquinas, philosopher, theologian, Doctor of the Church. Called the Angelic Doctor. Died in 1274.
Catholic Online
Centre for Thomistic Studies, Sydney, Australia - year-round courses in philosophy and theology, based on Saint Thomas Aquinas, and faithful to the Pope and Catholic Church teachings
Complete Study of Saint Thomas Aquinas - presents historical context, writings, and the influences on St. Thomas.
Digital Library - Summa Theologica: Questions on Law and Justice - complete text of work by Thomas Aquinas.
Domestic Church - Three accounts of the life of St. Thomas Aquinas: for children ages 0-8, children 8-14, and age 14-adult. By Catherine Fournier.
Dominican Central - Brief illustrated biography of St. Thomas Aquinas. With prayer.
G. K. Chesterton: St. Thomas Aquinas - Full text of book online in HTML. 299K. "A popular sketch of a great historical character who ought to be more popular".
Garth Kemerling - Brief discussion of the life and works of Aquinas, with links to electronic texts and additional information.
Institute of St. Thomas - advances itself as an international meeting place for all researchers in the field of Scholastic Philosophy and Theology with special reference to the figure of St. Thomas Aquinas.
Internet Encyclopedia of Philosophy - Unsigned biographical essay on Thomas Aquinas.
James Kiefer's Christian Biographies - St. Thomas Aquinas, priest, friar, and theologian. Anglican perspective. With prayer in traditional and contemporary language.
Lives of Saints - St. Thomas Aquinas, confessor, Doctor of the Church. From the book "Lives of Saints", published by John J. Crawley.
Lives of the Saints - St. Thomas of Aquino, Doctor of the Church and Confessor. From Alban Butler's Lives of the Saints.
My Patron Saints - Tom Kreitzberg says, "While St. Thomas was named a Doctor of the Church for his writings, he was named a saint for his life." An approachable reflection on someone who can seem a formidable saint.
Nicholas Halligan - The Teaching of St. Thomas Aquinas in Regard to the Apostles. Article from the January 1961 issue of The American Ecclesiastical Review.
Patron Saints Index - Illustrated biographical profile.
Saint Benedict Center - Pious hagiography with a Feeneyite agenda: "As in our day, so then the enemies of our Lord and our Lady were the heretics on the outside and the liberals within."
Saints' Lives - Contends that all Westerners live in the shadow of Aquinas's philosophical achievements.
St. Thomas Aquinas and Medieval Philosophy - from the rise of Scholasticism and St. Anselm to the Summa Theologica of St. Thomas by D.J. Kennedy.
Stanford Encyclopedia of Philosophy - Biographical and expository essay on Thomas Aquinas, by Ralph McInerny.
Sule Elkatip - Reason and Faith for St. Thomas Aquinas and Bl. John Duns Scotus. Short paper on the question of faith and reason, with notes. In plain text.
Summa Theologica - text of the work.
The Ecole Glossary - Brief biography of St. Thomas Aquinas, by Andrea Parra.
Thomas Aquinas - The Angelic Doctor
Thomas Aquinas in English - Lengthy bibliography of online Aquinas texts in English.
Thomas Instituut - The most comprehensive web site on Thomas Aquinas. Uses frames.
Thomas Instituut te Utrecht - co-operation of theologians, philosophers and historians from several universities and institutes in the Netherlands, specialised in the study of the work of Saint Thomas Aquinas.
Thomistic Philosophy Page - Joseph Magee's site, with an introduction to Aquinas, and original articles on many aspects of Thomistic philosophy.
Vietnamese Eucharistic Youth Society - Brief summary of the life of St. Thomas Aquinas, suitable for children. The way it is formatted can be hard to read, though.