AdFly is one of the oldest high-paying URL shorteners that not only has a really good reputation but a track record of paying its link shrinkers (users) on time and a great place for advertisers to spend their marketing budget.
Wayback Machine - Browse through over 150 billion web pages archived from 1996 to a few months ago.
Bitly - Get the most out of your social and online marketing efforts. Own, understand and activate your best audience through the power of the link with Bitly Enterprise.
Waybackpack - Download the entire Wayback Machine archive for a given URL
Polr - An open source URL shortener. A great non-profit and free alternative to bit.ly, TinyURL, or goo.gl.
Archive.md - archive.is allows you to create a copy of a webpage that will always be up even if the original link is down
YOURLS - YOURLS is a website that contains all the tools you need to create and launch your very own URL shortener. URL shorteners like bitly or TinyURL are fine for public use, but they offer limited options in terms of URL customization.