Cutt.ly - Free custom URL Shortener and branded URLs with advanced links tracking and Link Management Platform & API.
PixelMe - URL shortener for savvy marketers
Rebrandly - Rebrandly is the easiest way to create, share and manage branded links.
chl.li URL shortener - A simple, modern, free and privacy-friendly URL shortener.
Hash-n-slash - A concept for Sentence based URLs
Pixela - Record and Track your habits or effort. All by API.