Second Life attracted 1.3 million users who logged in March 2007, a 46 percent increase over January of this year, according to data on the virtual world released by comScore Networks. Second Life is a virtual world created by Linden Labs. Users create an online persona and interact with other users, own property and build residences, and can hold jobs and earn Linden dollars. Data listed on Second Life's Web site states just over 6 million as the total number of residents, and says 1.7 million have logged in over the past 60 days.

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