I have just joined Second Life. This 3-D virtual game is amazing. Developed by Linden Research, Inc, registered users known as Residents, build and own stuff in this virtual World.
I am still exploring this virtual world. It's totally free to join in.
They even have a virtual currency called the Linden Dollar wiith which you can buy stuff and can be converted into the US Dollar (Yes! real US Dollars) and vice versa. Right now the exchange rate is approximately 250 Linden Dollars (L$) to one US Dollar.
You can create products which you can sell and you retain the copyright over their content. No wonder a lot of companies have opened outlets in this virtual World.
Will keep you updated about my avatar's adventures.