- The Internet Encyclopedia of Philosophy: An online resource for numerous general philosophical terms and concepts.
- The Stanford Encyclopedia of Philosophy: An online resource for more detailed philosophical topics aimed at professional philosophers, but perfect for the interested student who wants to further investigate a philosophical problem.
- The Nizkor Project: Logical Fallacies: An online database of errors in reasoning, known as “fallacies" that is useful to students writing argumentative papers.
- Philosophy Now Magazine: An online magazine dedicated to philosophical discussion on all topics.
- Zeno’s Coffeehouse: A variety of logic puzzles.
