Although the 2006 EPN study on Second Life (PDF) is quite old judging by the Internet age, I have just discovered it as a newbie to SL.  What I find interesting in that report is the general conclusion of enhanced psychological health and happier life due to participation in Second Life.  Converging on a point I raised before in my blog, this report suggests that, for most people, SL does not threaten to replace real-life but rather functions as a supplement and extension of our real life.  It’s all interconnected in our own mind and therefore has a real impact on who we are as an individual.