They all the same, myspace, friendster, hi5, facebook, adultspace, xpeeps, xfanz they are all the same there is no real difference but the big one is myspace since its always on the news or in some tv show or dr phil.
facebook: you can hook up with ya old classmates, your current classmates or co-workers what ever..u need a school or work e-mail adress to sign up.....
Myspace: is more commercial..anyone can sign up..u know
I use myspace.. I dont really pay attention to it.. I have a profile so I can post my bookings... have a few pics up n thats about it.. I approve people and respond to a private msg once n awhile. Its annoying, its always crashing.. but everyone uses it.