Windows Communication Messaging tools
Very popular program used to communicate with friends
A messaging client that unifies all your accounts
Start multiple sessions with yahoo! messenger
Customize Windows Live Messenger 8.5 to your liking
Synchronize your Outlook calendar with Google Calendar
A simple and secure instant messenger program
Yahoo! Messenger for Debian Linux distribution
Chat and receive notifications with Google Voice
Messaging client that unifies all your accounts
A server to send and receive messages
