- The American Philosophical Association: Web Resources
- Directory of philosophy websites. Categories include: Associations & Societies, Bibliographies, Centers & Institutes, Courses on the Web, Directories, Electronic Texts, Guides to Philosophy, Journals, Libraries, Programs of Interest, Publishers, Software.
- Contemporary Philosophy, Critical Theory and Postmodern Thought
- Directory of web resources and selected readings. Provided by the University of Colorado at Denver, School of Education.
- EpistemeLinks
- "EpistemeLinks includes over 19,000 categorized links to philosophy resources on the Internet and has several additional features."
- How Stuff Works: Philosophy
- Topic include: Ancient Philosophers, Fields, Modern Philosophers, Points of View, Terms
- ImportanceOfPhilosophy.com
- Topics include: Metaphysics, Epistemology, Ethics, Politics, Esthetics. Notable sections include: The Five Branches of Philsophy, a Concepts Chart, and a Philosophy Dictionary.
- The Internet Encyclopedia of Philosophy
- A guide to terminology and people of Western philosophy. Includes definitions, timeline and some texts.
- An Introduction to Philosophy: An Online Textbook
- Chapters include: The Greeks: The Origins of Philosophy in the West, Philosophy of Religion and the Problem of God, Metaphysics, Epistemology, The Mind- Body Problem, Freedom and Determinism, Ethics, Social Philosophy, Political Philosophy, Philosophy of Art and Aesthetics. By Philip A. Pecorino, Ph.D., Professor of Philosophy, Queensborough Community College, CUNY.
- Noesis
- "A limited area search engine for open access, academic philosophy on the Internet."
- Philosophy Pages
- "This site offers helpful information for students of the Western philosophical tradition." Sections include: The Dictionary of Philosophical Terms and Names, a History of Western Philosophy, a timeline, major philosophers, elementary principles of logic, and a Study Guide.
- Philosophy Study Guides
- Information on classic and modern philosophers and their philosophies/philosophical writings. Sections include: Characters (where applicable, as in Plato's dialogues), Summary, Analysis and Themes, Study Questions. From Spark Notes.
- Philosophy Terms and Concepts, Biographies
- From InfoPlease.
- Stanford Encyclopedia of Philosophy
- "From its inception, the SEP was designed so that each entry is maintained and kept up to date by an expert or group of experts in the field. All entries and substantive updates are refereed by the members of a distinguished Editorial Board before they are made public."