When and If Virtual Worlds Collide

http://www.massively.com/2008/06/14/the-daily-grind-should-mmogs-and-virtual-worlds-be-separate/

The Daily Grind: Should MMOGs and virtual worlds be separate?
Friday held the Social Gaming Summit, a meeting of the luminaries of the various virtual worlds -- Gaia Online, Neopets, and IMVU to name a very few -- in San Francisco. This blogger was on hand for several of the panels, and came away with a deeper understanding of where the demarcation between massively multiplayer online game and virtual world was drawn. On the virtual world side, developers are beginning to incorporate more and more elements of what would normally be considered MMO-only features, like quests and leveling up ...