fruux - Free service that takes care of your contacts, calendars and more so you don't have to.
ABBYY Business Card Reader - Scan cards ≡ in a second and manage them everywhere ☁
FullContact - Put the power of full contact information into your web or mobile apps.
Sansan - Sansan provides a internal contact sharing service for companies.
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.
Scanbizcards - Maximize your marketing events ROI with ScanBizCards.