Using Goo.gl without the Google Toolbar

About Google link shortening service - Goo.gl have been written more than once .
Despite the fact that a huge number of such services have multiplied, Google interested people (including me) precisely in that it is Google - stability, reliability, and just love for the corporation of evil good =) The
fly in the ointment turned out to be possible to use the service only in Google Toolbar and Feedburner. A little later, a plugin for Chrome appeared. But users of other browsers remained in flight.
“Yes, it cannot be!” I thought, and I turned to my big brother asking how to use his new feature without his own proprietary software. And the answer was found pretty quickly.

Goo.gl bookmarklet

How does it work?
We take this code:
javascript:window.googl_callback = function(response){if(response.error_message){alert("An error occured: " + response.error_message);}else{prompt('', response.short_url);}}; var s = document.createElement("script"); s.src = "http://ggl-shortener.appspot.com/?url=" + encodeURIComponent(window.location.href) + "&jsonp=googl_callback"; void(document.body.appendChild(s));
And create a bookmark in the browser, entering it instead of the page address.
Now, when you need to shorten the link, we don’t copy anything anywhere, but simply, remaining on the desired page, click on the bookmark, and voila:

For lovers of the “classic” method, a couple of online services of the same purpose were found:
www.6api.com
gaigalas.net/lab/googl

P.S. Thanks to user akirsanov for a little revision =)