Haystack - Your new business card.
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.
ScreenTag - Digital business cards for professionals and teams
Drupe - Next generation contact manager and dialer.
HiHello - Exchange contacts, seamlessly.
Simple Contacts - Contact lens prescriptions from home