Kifi - bookmarks made social
AdHype - The best link shortening service.
Pinboard - Pinboard is a personal archive for things you find online and don't want to forget.
Pocket - When you find something you want to view later, put it in Pocket.
VivAds.net - shorten URLs and Get paid
URL Multishortener - The first APP & BROWSER EXTENSION that allows you to shorten links on the fly with the best link shorteners that paid.