And what's your take on this frenzy of social/business networking, anyway? I'm on Facebook, JacketFlap, LinkedIn, Filed-by-Author, Goodreads and Twitter, mostly just so I can say I am. I feel it would take all day EVERY day to effectively exploit the various platforms.It makes me tired just thinking about it. It's enough of a commitment for me to maintain a blog. But you guys tell me: Should I tweet (or facebook, or etc)? Why?