Yahoo! Messenger 22.214.171.124
Instant Messaging: Send text messages in real-time to your friends on Yahoo! Messenger.
Photo Sharing: Share photos from your desktop, then discuss them over IM while you and a friend view them together.
SMS (Text Messaging): Send text messages from Messenger to your friends mobile phones for free.
Webcam: Plug in your webcam to share live video with your friends on Yahoo! Messenger.
IM Conferencing: Instant message with many friends at once in a conference room (includes voice capabilities, where available).
IM with Friends on Other Networks: IM with friends who use Windows Live™ Messenger, Reuters Messaging, and Lotus Sametime — right from Yahoo! Messenger.
File Transfer: Send files instantly to a friend while you IM (2 GB limit).