Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Drupe - Next generation contact manager and dialer.
ContractHero - Intuitively organize contracts and be reminded of deadlines
Simple Contacts - Contact lens prescriptions from home
Webby - Webby allows to use Facebook, Youtube or any web app as a regular desktop apps, integrated with the...
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.