Fur.ly
This web tool lets you place up to 50 URLs . It also allows its users to link multiple web sites to a single URL.
Google URL Shortener
This is one of my favourite shortening tools and probably the best online. It not only shortens your URLs but also keeps track of the history of your shrotened links and provides you with analytics on how many people clicked on them and so forth.
TinyURL
This is also another great free tool that makes posting long URL easier. You can drag and drop its bookmarklet to your toolbar. It works on all major web browsers as long as your bokmarks and favourites allows javascript.
Bit.ly
This service allows its users to shorten as many URLs as they want. It also lets them share and track analytics of their links.
Cli.gs
This is a short URL service that shortens long links for easier sharing with friends on Twitter and Facebook, over email or IM.
Snip URL
this tool allows users to shorten many URLs at once.You can also drag its bookmarklet to your browser for easy use. It does require a sing up.
Is.gd
This is another great short URL service. It does not require a sing up
V.gd
This one here is like Is.gd for they have the same features and almost the same platform.
Tweetburner
This tool lets you shorten URLs and track what happens with links you share on Twitter.
