According to the British analytics company KZero, as of Q3 of 2010 the most popular virtual world is Minecraft. Other popular virtual experiences include Stardoll, World of Warcraft and Second Life.
According to Forbes, Minecraft is the most popular virtual world because it allows users to use their imagination to create places and objects while interacting with other participants. Minecraft's format is influencing other types of virtual worlds as well.
Stardoll is the most popular virtual world for younger users, while Second Life is one of the original virtual worlds that offered users the ability to create their own spaces and interact with other users. World of Warcraft is the most popular massively multiplayer online game (MMOG) that incorporates much of the fantastical elements of Second Life with interactive game play.