I wrote a short script to shrink URLs:

    % shorturl http://www.jukie.net/~bart/shorturl
    http://2tu.us/ce8

    % shorturl
    Type in some urls and I'll try to shrink them for you...
    http://www.jukie.net/~bart/shorturl
    http://2tu.us/ce8
    http://www.jukie.net/~bart/20090320214228
    http://2tu.us/ce9

I am doing this as part of my new identi.ca addiction^W usage and extending GregKH’s command line micro blogging tool.

UPDATE: also picked up by @vando for use with mcabber.