Bit.ly Builds Business on Libya Domain | Workbench
http://workbench.cadenhead.org/news/3503/bitly-builds-business-libya-domain
rev=canonical: url shortening that doesn't hurt the internet
http://revcanonical.appspot.com
"RevCanonical is url shortening with a twist. Instead of creating its own super short versions of links, it checks to see if the link owner has published a shortened version of the given page using HTML link element. If not, we just return the original URL. And you should bug the link owner about providing a better alternative."
URL Shortening Hinting - Laughing Meme
http://laughingmeme.org/2009/04/03/url-shortening-hinting/comment-page-1#comment-750497