I check Yahoo’s website today and click on Messenger link. They are introducing the new Yahoo! Messenger for the web. I already tried it and quite impressed with its features.
The interface is very good and has almost the same look and feel with the windows application Yahoo! Messenger. It also can show emoticons, show status messages, show message if the chat partner is typing messages. It will play a sound if your chat partners send you a message.
With Yahoo! Messenger for the web you can chat with more than one person. But I think you can’t join a Conference chat, not sure about this as I not yet try it. Another good thing is that the web messenger saves your chat conversations. You can turn off the history logging by clicking on the “Options”
You can try it your self by clicking this link: http://webmessenger.yahoo.com