General Philosophy:

Trinity College

Stanford Encyclopedia of Philosophy

The Internet Classics Archive

Episteme Links

The Philosophical Lexicon

Internet Encyclopedia of Philosophy

Exploring Plato's Dialogues

The Socrates Argument Clinic

Philosophers
Aristotle

Locke

Contemporary Philosophy, Critical Theory and 'Postmodern Thought' [a contradiction in terms]

Philosophical Humor

How Thinkers Influence Us By Arnold Kling

Folk Beliefs Have Consequences By Arnold Kling

Morality

The Moral Sense Test

Joshua D. Greene

Steven Pinker