$8.95 annual fee gets you access to a ton of PDF versions of books, MP3 of audio books, etc. There's also a free database of HTML versions of books out of copyright.

Interactive display of interesting wanderings in human history. Lindbergh's flight, De Soto's expedition, Lewis & Clark's expedition, voyages of Marco Polo, etc. Very cool. Wish this had been around when I was in school.

Hack that allows you to play DVDs on your Wii.

This Firefox extension allows you to permanently "delete" (really block) any element from a web page or web site. Kind of like an ad blocker, but for everything.