get.evercontact.comSoftware by Kwaga
fruux - Free service that takes care of your contacts, calendars and more so you don't have to.
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
FullContact - Put the power of full contact information into your web or mobile apps.
Pobuca Connect - Connect with your contacts.
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.
CRM-gx - Contact Management