I'm a professional computer programmer with a degree in Computer Science. Needless to say, I've seen some pretty geeky things done by some pretty geeky people, but nothing tops what a co-worker showed me the other day.

If you telnet to towel.blinkenlights.nl then you'll see an entire scene-by-scene recreation of the first (er, fourth) Star Wars movie done in ASCII!

1. In Windows go to Start > Run..., or hold down the windows key and press R. 
2. Type "telnet towel.blinkenlights.nl", without the quotes.
3. Marvel.

Version 3.0 of Firefox will officially be released to the public on June 17th, 2008. You will be able to download it from http://www.spreadfirefox.com/en-US/worldrecord. You can view the release notes at http://www.mozilla.com/en-US/firefox/3.0/releasenotes/.