Comment 3 for bug 249722

tinyurl, xrl.us and tr.im are all implemented. not sure if any more are needed. personally i use url.ie but i doubt many other people do. Here are a list of others: http://mashable.com/2008/01/08/url-shortening-services/
do u have access to an api for ½.ws? as there is no public one available at the moment.