Starting Monday and continuing over the coming months, Yahoo! will activate this feature for users of the new version of Yahoo! Mail, which is in beta, or test, phase but available to all users of the service.
This will allows users to run both Yahoo! Messenger and Yahoo! mail programs in one Web browser windows without downloading Yahoo! Messenger.
You can choose to let your friends know if you are online and available to exchange messages in real time, and you will be able to see the online status of everyone in their contact list as well.
Each instant messaging dialogue will take place in a new conversation tab within Yahoo! Mail, allowing people to chat with multiple friends or business associates simultaneously, without logging out of e-mail. Users will also have the option of converting e-mails immediately into IMs.
Join Yahoo! mail beta