Google have released a URL shortner at http://goo.gl/ – following in the foot-steps of sites like http://bit.ly/ and http://pig.ly/. However, Google’s URL Shortner is only for use within Google Toolbar and FeedBurner.

More news in the press release here : Google Blog

Facebook – somewhat of an arch rival of Google – have been rolling out a URL shortner for a short while on their mobile system. Any link in the m.facebook.com stream is auto-shortened using using fb.me. For example – fb.me/chickenland would take you to my page on Facebook.