What are some alternatives?
Polr - An open source URL shortener. A great non-profit and free alternative to bit.ly, TinyURL, or goo.gl.
TinyURL - Are you sick of posting URLs in emails only to have it break when sent causing the recipient to...
Kutt.it - Kutt.it is a free and open source URL shortener with custom domains and stats.
Rebrandly - Rebrandly is the easiest way to create, share and manage branded links.
adf.ly - Earn money for each visitor to your shortened links with adf.ly!
Shorte.st - Smart and easy way to get extra income from your traffic.