Yahoo! Messenger is a program for different types of communication between the people connected to the Yahoo network, and who can be anywhere in the world.

After the installation you will have to create a user account (free) on the Yahoo Messenger server. User account is the foundation of connection to the Yahoo Messenger server and of your whole subsequent work. The most popular communication method is instant messaging with messages appearing instantly on the screen of the receiver. You can use chat, send e-mail messages, share and transfer files, have video and audio conferences, etc.

Screenshot examples:

Official tool site: http://messenger.yahoo.com

Analysis of the tools: http://www.carnet.hr/referalni/obrazovni/en/mkod/analysis