What is that Second Life thing?

In this age of technology almost everything becoming something electronic. What i mean by that is basically, we are now able to do things in virtual platforms that we were doing in the past as real. Now let me introduce the game. Second Life. This game is a sandbox game which minimal character limitations are placed on the gamer, allowing the gamer to roam and change a virtual world at will. That means players can create their own world without limitations. As an educator this game and this kind of games can be used in games in a good way. For example, player or the teacher, can create a virtual classroom that will draw the attention of the students this way the education will be much more effective. At least I believe that way.