Unfortunately, no. I have both MySpace and Facebook accounts, although I don't really use the MySpace account anymore. They're nice for finding old friends and keeping in touch with current friends and family in a more graphic and immediate way than with email or snail mail. MySpace is good for finding local musicians and musical events. I was told that a Facebook presence was essential to my consulting business, but I haven't seen any benefit so far.
As far as electronic busybodies, I don't worry about it anymore. (Was Steve Taylor quoting someone else when he sang, "Since I gave up hope, I feel a lot better?") I am tagged and tracked in almost every conceivable way, and there is very little I can do about it outside of dropping off the grid altogether. So I gave up on that, and try to just do what's right for me, my small family, and my community. There's a lot of gray area there, unfortunately, especially when Uncle Sam and Big Brother want to tell me what's right and ensure that I do it their way. :x So I try to be aware of what's approaching my right hand and forehead and fly under the radar when it matters most while still trying to function in "the system." It's hard to tell where the compromises end and the Compromises begin.
