Very Fun Flash Tutorial

Yeah, it's put out by a mega corporation, not a university, but it's still a very fun learning tool.
It's laid out in one of those crappy "intuitive" styles, but of course it's not very intuitive at all.
The intro takes about a minute or so, when the "light year" page loads, you can click through the rest of the segments, going from right to left as size decreases. Not all of the pages have text, but take the time to read the one's that do.
The thin, gray tiles (with the tiny, tiny print) along the bottom of the image area are your navigation bar. The silhouettes on the graph are clickable, just mouse-over for names.
CLICK HERE for "Universcale"