I've got quite the potpourri for your delectation (translation: a bunch of lame links I found).
First up, a collection of java applets that allow you to explore concepts in game theory, such as the "Prisoner's Dilemma," and "Rock-Paper-Scissors." Not terribly flashy, but interesting, sort of.
Second is a list of a gazillion satellites that you can click on and view the earth from. Unfortunately I get vertigo at any height beyond 1,000 miles, so I didn't explore them all.
Strike three: a rather dumb game where you bounce a ping-pong ball off a paddle.
Let me rephrase that. A really dumb game.