I've been having fun on Facebook lately. Not a whole lot of truckers there, though.
Myspace gets annoying with all the errors and then half the pages you can't read because of the code errors or there's just too much going on- or you can't read the text because there isn't enough contrast.
I signed up for a Myspace page a couple years back, but I still haven't done anything with it. I guess I just don't really care about that sort of thing anymore. I still dig the whole Myspace thing and Youtube and all that, but I just don't have the patience to design a cool page. :?