Dear Robin, I used it all in WriteWords Press, my editing and writing business, but don't trust the value of doing it. Clutter, for sure. Noise, absolutely. Plus it takes a long time! I think phone calls work better than social media; and you need a website for authority and reference. Email as correspondence is dying in my opinion because it's been co-opted by advertising brands. Facebook is good for events and spreading the word. Twitter too.