A URL shortener like TinyURL or bit.ly is a handy tool on these Twitter times. But even shortened URLs from those services can get a bit too long when you are on tight spots.
Enter u.nu, arguably the shortest URL shortener in town - which, unfortunately, does not come with a one-click shortening option like bit.ly's bookmarklet. It does, however, offer an API, with which I quickly hacked a minimalistic bookmarklet.
Just drag and drop the link below to your browser and turn anything in your browser into a short URL with a single click:
u.nu <- drag that to your browser's toolbar.
UPDATE: Real stupid mistake - forgot to escape the URL (but hey, I told it was a quick hack :-P ) - fixed now (Feb 9, 2010).