Second Life® (SL) is an innovative digital world created in June 2003 by Linden Lab, a Californian company, acting only on the Internet. The purpose of SL is to provide entertainment via virtual experiences to customers who act, travel, buy and discuss into this world through their own avatar. SL is a 3D interactive combination of improved chat and video game, without any strict rules nor clear objective for the game apart to spent time in virtual reality and to enjoy this experience. SL is the most important Massive Multiplayer Online Role Playing Game (MMORPG).