will there be a next most popular social website?

The social seen online has changed a lot since the turn of the millenium, even since 2006 when I first entered high school, things have changed quite a bit, Myspace was the popular social website amnongst my peers, but then about two years after the best thing was Facebook apparently and as you would guess still probably is among people I know, and you would be seen stupid to have a twitter unless you were a celebrity that was in the fast lane that had a busy interesting life. So if twitter isn't the next big thing for most of the online public than what is? there are plenty of other social websites that have come around the same time as Myspace and facebook, like Bebo, one of the new social sites that has taken my interest is imesh. imesh is a social network for peer to peer music sharing downloads that has a interface that has a similar appearance to myspace,but it's functionality is different. There is a joke that has been going around that, "in the future the three major websites, Youtube,facebook and twitter will combine to make... You Twit Face! haha Lmyao. In my opinion I believe the next big thing hasn't even been made yet, or is in the process of being made.