Kutt.it - Kutt.it is a free and open source URL shortener with custom domains and stats.
Knowee - Don't print your cards - Impress your contacts.
PixelMe - URL shortener for savvy marketers
Mobilo Metal Card - The premium digital business card
Polr - An open source URL shortener. A great non-profit and free alternative to bit.ly, TinyURL, or goo.gl.
Neucards - Update your contact info with friends while protecting your privacy.