Second Life is just as it sounds. A second life.
Designed by Linden Research Inc, This program, (game), allows the user to live a second life, and not feel too guilty about it.
My wife first introduced this game to me a few days ago. I'm not a big gamer per se, but decided to check it out. To my surprise, the graphics in this game are phenomenal. The speed, the interaction, certainly much more than I expected.
In Second Life, you're able to buy clothes, buy land, have a job, or be an employer. Pretty much anything you can do in REAL life, you can do in Second Life. There are even ADULT themed areas in this fictional world. However, to access those areas, there is a very thorough age verification process.
One of the best things about Second Life is: It's FREE! A free download, free install, free everything. Like most games, there is of course the option to pay. I haven't used that option yet, but I can assure you I will shortly.
All in all, this program is certainly one of the better games I've played. I highly recommend checking it out. If for nothing else, but to see what others do in their second lives.
For those of you who are interested, you can download this great game at: http://secondlife.com