From PBS online:

When the sun comes up in Second Life, which it does every four hours, you are immediately overwhelmed by the vast, brightly colored mish-mash of stores, houses, and malls stretching across multiple continentsall of it, including the mountains and forests, designed and built from scratch by the tens of thousands of people who regularly visit here.  
 
View the report online at http://www.pbs.org/wnet/religionandethics/episodes/september-18-2009/second-life/4243/.