Second Earth

Very interesting article about the metaverses writen by Wade Roush on www.technologyreview.com
(Well, its from august 2007, sorry for the delay!):

"The World Wide Web will soon be absorbed into the World Wide Sim: an environment combining elements of Second Life® and Google Earth®."

http://www.technologyreview.com/printer_friendly_article.aspx?id=18911