EpistemeLinks.com
Managed by Tom Stone; includes thousands of sorted links to philosophy resources on the internet and has several additional features. The main sections of EpistemeLinks include: Philosophers; Topics; E-Texts; Images; Classroom; Journals; Discussion Lists; Professors and Graduate Students; Organizations; Departments; Newsgroups; Events; Publishers; Fun and Humor; Papers; Jobs Listings. It is well organized and updated regularly.

Philosophy in Cyberspace by Dey Alexander.
"Hosted by Monash University in Australia, this is one of the best general guides to philosophy-related resources on the internet. The guide is divided into five sections (branches of philosophy, text-related sites, organizations, forums, and miscellaneous) and is probably the best maintained of all the guides to philosophy on the internet. It is regularly updated, and the links (all 1900+) are checked monthly to ensure accuracy. Unlike most other guides, this one is richly annotated."

Guide to Philosophy on the Internet by Peter Suber.
This is one of the most comprehensive guides to philosophy-related resources on the internet. Unlike Philosophy in Cyberspace, this guide doesn't have a separate Web page for each section. Instead, it consists of one very large file (over 250k). This means it takes time to load. But there is a significant advantage to having the guide consist of only one page: you can use your browser's search command to search all sections at once. There is now a faster loading multi-file edition.

HIPPIAS: Limited Area Search of Philosophy on the Internet by Peter Suber (General Editor).
"Hippias is a peer-reviewed, limited area search engine (LASE) of philosophy-related resources on the World-Wide Web. The point of Hippias is to limit searches of the internet to only those sites of scholarly interest. So whereas a search for "Plato" using a typical search engine like Alta Vista results in over 40,000 matches (many of which have nothing to do with Plato the philosopher), a search for "Plato" using Hippias results in less than 300 matches all pertaining to Plato the philosopher."

Philosophy Documentation Center.
"The PDC publishes: (1) the Guidebook for Publishing Philosophy, 1997 Edition; (2) Books in Philosophy (the world's largest mail-order supplier of philosophy books--the PDC is currently constructing a searchable online version of the catalogue); (3) POIEISIS: Philosophy Online Serials (a major electronic journals project); (4) numerous print journals; and a lot more."

WWW Philosophy Resources
A good set of links to resources, organized by philosophical subject area Particularly helpful for resources in Anglo-American philosophy

Voice of the Shuttle Web Page for Humanities Research Maintained by Alan Liu.
A good place to start looking for resources in philosophy and the humanities more generally.

Stanford Encyclopedia of Philosophy Edited by Edward N. Zalta.
A Publication of: The Metaphysics Research Lab, Center for the Study of Language and Information, Ventura Hall, Stanford University, Stanford, CA 94305-4115 "The Stanford Encyclopedia of Philosophy is intended to serve as an authoritative reference work suitable for use by professionals and students in the field of philosophy." The entries are refereed by a select Editorial Board who are responsible for continually evaluating the entries along with whatever modifications made to them over time. Unlike other internet encyclopedias, the authors of this encyclopedia have direct access to their entries and can upload changes as they see fit. Thus, the entries are continually improved and updated in light of new research. Although still in the beginning stages, what is available is of high quality.

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.

The Virtual Library: Philosophy
Extensive list of texts, mailing lists, journals, and academic departments.

Blackwell Publishers' Guide to On-line Philosophy Resources
"The goal of this list is to be useful not comprehensive. Several fairly comprehensive sites exist with certain strengths and weaknesses; you can find pointers to them here. The number of philosophy-related sites can be overwhelming, and some are far more useful, helpful, and current than others. Our hope is that this site can help steer your toward the information you are after more quickly. Sites which are not available in English. or are focused too specifically on areas of interest to a limited audience have not been listed here." Blackwell's site is very good, listing many useful resources including links to departments, usenet and listserv groups, online texts, bibliographies, pages on philosophers, societies and associations, journals, dictionaries, and topics.

Philosophy around the Web
An excellent page created and managed by Peter King and organized into the following categories: Universities' Philosophy Pages, Institutions, Commercial Organizations, etc., Individuals' Philosophy Pages, Philosophy Sites by Topic, Philosophy Journals, Sites Devoted to Individual Philosophers, Philosophy Discussion on the Internet, Philosophy Events, Continuing Education, and Philosophers on the Web. Includes many helpful links for making contacts with departments and philosophical organizations and publications.