Denise Brody wrote a great, but what I consider ill named, article. I say this because I'm EXTREMELY glad I read it, but almost didn't because the title was a turn off for those of us already on Twitter have a writing-good-time: "Twitter Does Not Sell Books. This 5-Point Plan Does."
But please, do go read it. You'll be glad you did. And then you'll also understand the title to this post.