Growth is real in virtual worlds [chicagotribune.com]

Virtual worlds have become the latest shiny object on the Internet, attracting more than $345 million in venture financing in the first six months of this year, according to Virtual Worlds Management, a firm that researches the industry. (...) Each boasts millions of users who buy virtual items, look at advertising or pay for premium subscriptions.

Growth is real in virtual worlds -- chicagotribune.com >>

The reigning kings of virtual worlds for kids and teens include Gaia (15 m), Habbo (100 m) and Walt Disney Co.'s Club Penguin (19 million users)



K Zero collects data for all virtual worlds above 1 million registered users for all age segments in it's own Universe graph