CBC News: Microsoft, Yahoo to link up instant messaging services

CBC News: Microsoft, Yahoo to link up instant messaging services: "Users of Microsoft and Yahoo's instant messaging (IM) services will soon have millions of new people to chat with after the two companies announced plans to make each service compatible with the other.
Combining the two services will allow 275 million customers of Yahoo Messenger and MSN Messenger to swap free instant text messages with users on either IM network"