URL shortener thing is really a big deal, thanks to the needs to the microblogging services, mobile phones and any kind of manual text-entry. It’s “a renaissance in the age of Twitter,” according to Danny Sullivan. URL shortening is a technique where a provider makes a web page available under a very short URL in addition to the original address.
By the way, how useful of the URL shortener for you? Which shortening service did you use frequently?