Learn how to use Goo.gl, Google's new URL shortening service, to shrink web page URLs on the fly without the Toolbar.
Bit.ly, a popular URL shortening service, can now be used for hosting video files, images and PDF documents as well.
Long R Us creates a descriptive and more meaningful URL that contains the domain name of a web page, title and optionally an excerpt of the content.
Most URL Shortening services suffer from being fairly opaque, often resulting in embarrasing situations for the unsuspecting viewer.
Instead of relying on a external URL shortening service like TinyURL, FriendFeed have created their their own service called ff.im.