Whether it's blogging, communicating with donors, or trying to lure Facebook users to a cause, your writing skills have never been more important. On Twitter, your masterful haiku skills might come in handy - but beyond that, what does it mean to write in the age of distraction?   Thankfully, Cory Doctorow comes to the rescue.   I read this article a little while ago, and his advice keeps rattling around.   I particularly like his idea of leaving a rough edge when you work.   Read Cory's advice…