I think second life is an interesting concept but I don't think it will ever take over the internet. At least for now is seems to be to slow to really be efficient and get things done. Also I think as a human race we all need physical interaction with each other. If second life ever actually took off, there would be a lot of social and ethical problems as a result. It already has turned in a negative direction with the whole pornography route. Also what does it tell us about how we view ourselves. We could live a double life by changing what we look like or how we acted and I think thats a scary thought. Would there be any sort of a Government? Who gets to decide what one can do in second life? I found it fascinating how a group of users rioted the whole land issue and won.