There should an option here for none. It's not that I don't like networking with people online, but I don't like any of those websites, I haven't found one for me, or found my niche. I guess I'd be better suited to a question "What is your favorite instant messenger."
Right now, it is Eden. I was on Facebook, but left over a year ago when they started messing around with the security and personal pages.
I also have pages on MyFamily.com, byt they are not as fluid as these.