http://www.stumbleupon.com very possibly the best thing to ever happen to scanners. free. you can access the toolbar without registering, but if you do register, you can download the toolbar and set your preferences as to what topics you're interested in. Hit the "Stumble" button, and get transported to sites all over the net recommended by other users. thumb it up if you like it, down if you don't. the algorithm will adjust the sites you're sent to fit your interests and tastes. i've discovered tens of thousands of sites i'd never have imagined were out there, simply thru using my stumble button.

Next: 100 Extensive University Libraries from Around the World that Anyone Can Access
http://www.collegedegree.com/library/co ... _the_world and: 100 Awesome Blogs for History Junkies
http://www.bestcollegesonline.com/blog/ ... y-junkies/ and one of my absolute favorite resources, since i'm a language freak: Word2Word.com
http://www.word2word.com/coursead.html lists a hundred+ languages, and has links to sites around the web where one can find free lessons in each. Links are kept fresh.
Imagine Infinity.