Here's an unfinished draft of the talk we're supposed to give on our final project for the Kleinberg class:
http://www-2.cs.cmu.edu/~jcreed/flash/graphs_draft.swf
Click on the movie to make sure it has keyboard focus, and then use the left and right arrow keys to navigate between frames. It's Fontblog because the delta, sigma, and capital Omega are all new. I don't really like the way the Omega turned out, but I like the other two.