Editor's note: Global Kids each month points us to their current favorite resources. Please take a moment and share some of yours, too, in the comments section. Also, we always value knowing what the knowledge-hungry leaders at GK are reading, watching and listening to, but in the spirit of full disclosure want to acknowledge (and appreciate) that two items in this month's list involve our research director, Mimi Ito, and our supporter, the MacArthur Foundation. Topping this month's list: "Are Virtual Worlds Over?" a provocative blog post by digital games guru Raph Koster, who provides a mostly pessimistic but insightful piece about the future of virtual worlds.