Internet Encyclopedia of Philosophy

"Articles in the Internet Encyclopedia of Philosophy are currently from three sources (1) adaptations from public domain sources, (2) adaptations of material written by the editor for classroom purposes, and (3) original contributions by professional philosophers around the internet. Over time, the editor (James Fieser) seeks to replace all of the first two type of articles with original contributions by professional philosophers. The first two type of articles are identifiable by the inclusion of the initials IEP at the foot of the article. By contrast, original articles are identifiable by the author's name at the close. Presently, most articles in the history of philosophy prior to 1900, such as "Aristotle", are compiled from at least three public domain sources and have been heavily edited. Presently, most of the articles on philosophical terminology, such as "Universals", are by the editor." A good general resource for quick information on selected topics, primarily in the Anglo-American tradition.