http://whentwitterisdown.com/ - for, duh, when twitter is down!
∞ 8:00 PM May 29th 2008
Built by Prateek Rungta (@rungta), because Twitter makes it so easy to find that joke you cracked last year. Like, why would you want to embarrass yourself again, right?
Credits and more in the project notes.
Also, this site worst viewed in Internet Explorer.