Free Realms at first was advertised all over cartoon network and had ads every where to start its sucess.

It  became a HUGE  sucess and it even broke a record in Ripleys believe it or not with the record of most players in a short time. It might even kill Wow, who knows? Right now they have about 5.3 million players in about half a year, but that was just recorded a mouth ago. It might even be 6 million players but who knows?