This may answer some questions for ya...

It has been confirmed that Microsoft are closing down all groups and passing them on to Multiply. Please click here to read the full story. We have until Feb 21 1009 to decide what to do about it, We’ve received confirmation that Microsoft is handing over the reins to its MSN Groups property to the social network Multiply. Microsoft is planning to release a new service called Windows Live Groups in November, and apparently doesn’t want to compete with itself.