Two methods for creating Goo.gl URL shortlinks without the Google Toolbar have surfaced online.The first method by Alexandre Gaigalas is a simple webpage which takes the long url as input and spits out the Goo.gl url in return.

You can find that webpage here.

The second method is a Chrome Extension (Windows only for now) by giakomino which adds a small icon to the toolbar allowing you to generate the shortlink quickly.

You can install that extension from here.

[Via LifeHacker]