ClearPhone
http://www.clearphone.com
   Talk and send video over the net.
  Internet Phone
http://www.mirabilis.com
   The original internet telephone.
   Macirc
http://www.macirc.com
   User friendly IRC for MAC.
   Microsoft Chat
http://www.microsoft.com/ie/chat/
   Chat cutely through a cartoon character.
    MIRC
http://www.mirc.co.uk
   Most popular IRC client for PC's.
   Net2Phone
http://www.net2phone.com
   Place calls through the Net on any convectional telephone.
   Netmeeting
http://www.microsoft.com/netmeeting/
   Real time voice and video applications-sharing and
   multiuser whiteboard.
   The Palace
http://www.thepalace.com
   Chat and frolic in interactive animated rooms.
   VDOPhone
http://www.clubvdo.net
   Full colored video telephony even on the modem.
   Online! Traveler
http://www.onlive.com/prod/trav/
   Join, built and talk in 3D Net colonies