Friendster, Orkut, Myspace all failed due to emergence of Facebook. If another better social networking platform comes up, Facebook will go down...But I don't s

Friendster, Orkut, Myspace all failed due to emergence of Facebook. If another better social networking platform comes up, Facebook will go down...But I don't see that happening in near future. Facebook does look like going to be soaring up higher and higher if you look at the rate of their growth in not just the number of users but also their features and company size.