A global community couple of servers answering one simple question: What's your website doing? Receive answers on your phone, IM, or right here on the web!
fring™ uses your mobile internet connection to make peer-to-peer VoIP calls, send instant messages and talk with VoIP applications such as Skype, Google Talk , MSN Messenger and SIP at no extra cost.
J. Budzik, X. Fu, and K. Hammond. Workshop on Awareness and the WWW, held at the ACM Conference on Computer Supported Cooperative Work (CSCW'2000), (2000)