Yahoo! Messenger which we usually call the IM is an instant messenger program is popular. Yahoo! Messenger can also be downloaded for free. It also can use Yahoo! Others such as Yahoo! Mail by using Yahoo! ID is usually used. Use of this ID can also lead users directly notified when getting an e-mail.
Yahoo! has announced collaboration with Microsoft to join the instant network. This results in Yahoo! Messenger may be associated with the service. NET Messenger of Microsoft. This service started functioning since July 13, 2006.
