Yahoo! Messenger is a free service that allows you to see when your friends are online and ready to talk, send private, instant messages so no one else can hear, get instant alerts for new messages in your Yahoo! Mail account, and keep track of your stocks portfolios and use stock price limit alerts.

Features:

• Free PC-to-PC calls* — regular phones for dirt cheap
• Personalize Messenger with fun plug-ins
• Listen to free Yahoo! Music LAUNCHcast radio
• Instant messaging
• Drag and drop photo and file sharing
• Share IMs from your mobile phone
• Share live video with your webcam
• Use fun Emoticons, Audibles, and Avatars
• Catch up on friend's lives with Yahoo! 360° built right in