Thanks for the PM
Second Life is a virtual world "not a game" you can buy and invest in virtual real estate, properties and goods, just like in our world. You can buy, sell, trade those goods with anyone using SL currency known as the Linden, on average over $1.5 million dollars is exchanged every day!
SL is expanding FAST and VERY vertical. If you you don't already own property on SL - get some now!
More info:
http://secondlife.com