Start shrinking your URLs in ubiquity with is.gd service. Ubiquity, by default, comes with a command "tinyurl" to shrink your URL's. But I feel that TinyUrl is no more 'tiny' (as the domain itself is longer). So I created my own command to shorten the URL's using is.gd (another URL shortening service but with a short domain name). If you don't know what ubiquity is , then take a look at the note below.

Adding the command to your command list:

• If Ubiquity is already installed on your browser, you will notice a information bar with "Subscribe" button at the top right corner of the page. (If ubiquity is not installed, grab it from Mozilla Labs)
• Click on the "Subscribe" button
• A new page with the Command's source will appear.
• Click "I know what I'm doing. Subscribe to it!" ( I assure you that there is no malicious code . The source code is before you! )

Usage:

• Select the URL you want to shorten (or you can give it with the command)
• Now open Ubiquity and type is.gd and press 'Tab' to auto-fill the selection (You can also enter the URL here)
• Press 'Enter'.
• Now your original longURL will be replaced by shrinked URL from is.gd. The shortened URL is also copied to the Clipboard.

Happy Shrinking! :) 

The Project is hosted on Google Code . Visit the project page to know more about this command.