A colleague, Scott William Carter, has come up with a scale to rate our level of interaction on the internet, through Twitter, Facebook, blogging, and so forth. I read his post with interest, because of the ongoing discussion of promotion. How much is enough? And how do we make it suit our own style?
His blog post pleases me because of this paragraph: " I do think every writer should have at least a moderately updated web page, with contact info and credits, but beyond that I think it depends a lot on mindset and goals. Personally, I think if you’re serious about being a professional writer, then you really can’t afford not to explore some of the opportunities the Internet provides. But it’s always a question of how much time you’re willing to commit and how much you enjoy it."
He goes on to compare some writers who are more or less constantly engaged (the idea of which makes this writer need a nap and a cave to hide in) with a spectacularly successful one--Neil Gaiman--who does little more than Tweet. And Scott goes on to point out that if we write great books and they succeed, increased internet presence will develop on its own.
You can find Scott's chart here: http://scottwilliamcarter.com/2009/11/16/how-online-are-you-a-writers-scale-of-internet-engagement/ And in case you want to know, I rank as a 4.