Yahoo sent me this and it may not affect anyone on here but they are cancelling the Chat Feature and Labs?:
Dear User,
Unfortunately, the time has come to say goodbye to Yahoo! Groups Labs Applications (beta) and Groups Chat. We thank all the users that were a part
of this program. We intend to use this learning to enhance Yahoo! Groups further with new features.
On July 04, 2012, we will shut down the Yahoo! Groups Labs Applications (beta) and Groups Chat. This closure will not affect your other services on Yahoo! Groups.
Best,
The Yahoo! Groups Team