Aruna URL is a URL shortening service that is accessible via several methods to make it super convenient. The most convenient we find is the yahoo widget. There is also, html widget, facebook, igoogle, browser bookmarks and an API for developers. Handy for twitter, SMS, MMS and any other message service where your message is limited in characters.

"TwitThis is an easy way for people to send Twitter messages about your blog post or website. When visitors to your website click on the TwitThis button or link, it takes the URL of the webpage and creates a shorter URL using TinyURL. Then visitors can send this shortened URL and a description of the web page to all of their friends on Twitter."