(This post was originally made a few months ago at the loose wire blog. As part of efforts to streamline Loose Wire's online activities, the material at loose wire cache is being moved to the blog. A list of the resources can be under either the Resources list in the sidebar or the Resources category, also in the sidebar.)
A way to turn long URLs into short ones, so you can paste links into emails without them wrapping (and therefore becoming unusable) etc etc. In most cases you just visit the site, enter the URL you want to abbreviate, and hey presto! you get a new short URL that should last forever. (A lot of them can be added to your browser toolbar via Javascript which makes the whole thing even easier.)

There's also the inimitable EvilURL http://evilurl.com/
Posted by: Jim Hughes | August 10, 2004 at 09:15 PM
You forgot the best.
http://url123.com
Posted by: Francesco | August 25, 2004 at 01:28 PM
http://kuerzer.de/
http://csua.org/u/
http://www.rapp.org/url/
http://qwer.org/
http://tinyurl.co.uk/
http://shorterlink.com/
Not forgetting the inverted logic of:
http://www.hugeurl.com/
Posted by: Spam Links | December 01, 2004 at 03:51 AM
I see too much of URLs for URL Shortening / URL redirection service. But let me recommend you one more site, called URL Cutter : urlcutter.com
And I am impressed with the work they have put in. The real value add, they have is the statistics about the URLs you create, but for that you have to signup with them. The other things are cool.
Posted by: URL Cutter Service User | April 29, 2005 at 05:41 PM
Here is another one
http://tiny.mastiland.com
Posted by: Mohit | September 25, 2006 at 02:03 AM
new and very short
Posted by: jagus | March 12, 2008 at 03:17 AM
http://smarturl.eu
new and very short
Posted by: jagus | March 12, 2008 at 03:18 AM
http://smarturl.eu
new and very short
Posted by: JaGa | August 05, 2008 at 10:49 PM
http://sn.vc uses 301 redirects, allow to preview the URL and it's short too...
Posted by: Rick | August 15, 2008 at 01:34 AM