You may be looking for Club Station Alpha, the LEGO Club world.

LEGO Club
Leader	Max
Members	Bucky Gorfunblot
Main Location	Club Station Alpha
Enemies	None
Allies	None

In the March–April 2010 edition of the LEGO Club Magazine and Brickmaster Magazine, there was an advertisement on page 20 which told that details on a pre-order for LEGO Universe would be available on May 15.

The LEGO Club can be accessed at this link, and also has a game world just for members in LEGO Universe.