After Tinyurl, Bit.ly and more, here come Goo.gl : Google URL shortener. Why there's one?
Google needed a url shortener for its own products where we knew the shortener wouldn’t go away.
source : Mat Cutts' Blog
Also, he stated that:
The main feature is that you can use goo.gl just by going to the web page. But if you go to http://goo.gl and login with your Google account, you’ll get analytics and history features for the urls you’ve shortened.
I also give it a try. Initially, marketingadvertise.blogspot.com will be goo.gl/8j3G. In someway, it's weird for the 'goo' part...
Anyway, if you would like to try or use it, just visit the site: