Philosophy? I thought you'd never ask. Here are a few useful links:

Here's a list of a few of my favorite philosophy pieces:

"Identity and Necessity", "Wittgenstein: On Rules and Private Language" (Saul Kripke)
"Mental Events" (Donald Davidson)
"The 'Corroboration' of Theories", "Representation and Reality" (Hilary Putnam)
"The Logic of Scientific Discovery" (Karl Popper)
"Language-Games", "Interogative Model", etc. (Jaakko Hintikka)
"Possible Worlds" (Robert Stalnaker)
"Meaning and Truth", "Persons", "Skepticism and Naturalism" (P.F. Strawson)
"Intention" (G.E.M. Anscombe)
"Notebooks 1914-1916", "Tractatus", "Remarks", "Investigations", "Blue and Brown", "On Certainty" (Ludwig Wittgenstein)
"Mysticism and Logic" (Bertrand Russell)
"Modes of Thought" (Alfred North Whitehead)
"Logic, Semantics, Metamathematics" (Alfred Tarsky)
"On Sense and Reference" (Gottlob Frege)
"Sense and Sensibilia" (J.L. Austin)
"Syntactic Structures" (Noam Chomsky)
"Imagination", "Pleasure", "Concept of Mind" (Gilbert Ryle)
"Course in General Linguistics" (Ferdinand de Saussure)
"The Language Instinct" (Steven Pinker)
"Rediscovery of the Mind" (John R. Searle)
"Construction of Our Theory of the Physical World", "One's Knowledge of Other Minds", "Language, Truth, and Logic", "The Problem of Knowledge" (A.J. Ayer)
"A Theory of Justice" (John Rawls)
"Structure of Scientific Revolutions" (T.S. Kuhn)
"Meaning and Truth" (Garfield/Kiteley)
"Truth" (Paul Horwich)
"The Hermeneutics of Postmodernity" (G.B. Madison)
"Art as a Form of Life" (Richard Wollheim)
"Aesthetic Experience and Aesthetic Object" (Roman Ingarden)
"The Aesthetic Work of Art" (Steven Pepper)
"The Platonic Idea as the Object of Art" (Arthur Schopenhauer)
"Fate of Meaning" (John K. Sherriff)
"Writing and Difference", "Of Grammatology", "Speech and Phenomena", "Limited Inc." (Jacques Derrida)
"Madness and Civilization" (Michel Foucault)
"The Birth of Tragedy" (Friedrich Nietzsche)
"The Critique of Pure Reason" (Immanual Kant) [didn't like the other two 'Critiques'.]
"Varieties of Religious Experience" (William James)
"Essays on a Science of Mythology" (Carl Jung)
"Myth and Christianity" (Karl Jaspers and Rudolph Bultmann)
"Language and Myth" (Ernst Cassirer)
"Myths, Dreams and Mysteries" (Mercia Eliade)
"The Raw and the Cooked" (Claude Levi-Strauss)
"Being and Time" (Martin Heidegger)
"Meditations", "Discourse on Method" (Rene Descartes)
"Phaedo" (Plato)
"de Anima" (Aristotle)
"Resistance, Rebellion, and Death" (Albert Camus)
"Candide" (Francois Marie-Arouet de Voltaire)
"The Prince" (Niccolo Machiavelli)
"The Age of Reason" (Thomas Paine)
"Aion" (Carl Jung)
"Republic" (Plato)
"Zadig" (Francois Marie-Arouet de Voltaire)
"Ishmael" (Daniel Quinn)
"Tao Te Ching" (Lao Tzu)
"Hua Hu Ching" (Lao Tzu)
"The Chuang-Tzu" (Chuangtsi)
...and of course, Epicurus

Here's a little piece I wrote about the funny names that philosophers always seem to have.