A Few Useful Philosophy Links
Aristotle and Virtue Ethics. There are good links here, but try to avoid the distracting material.
Mandeville, and the Fable of the Bees
Stanford Encyclopedia of Philosophy
The Prisoner's Dilemma
Applications of the Prisoner's Dilemma. Not entirely accurate, but interesting.
An iterated (repeated) version, with a simple interactive simulator
An in-depth and fairly sophisticated discussion
Some Links Regarding Application Topics
Rules of War - the Complete texts of the four 1949 Geneva Conventions
An amazing array of material about capital punishment. See especially the timeline.
Abortion Facts, from the Alan Guttmacher Institute
Some Philosophy Departments in the New York Area
A Few More Advanced Links
Thoughts, Arguments and Rants, a Philosophy Blog
The American Philosophical Association
Guide to Philosophy on the Net (Links to everything, many are broken)