Blogging for writers - make your blog work

I'm supposed to talk mostly about writing and publishing on this blog, but I seem mostly to be talking about networking, Twitter and blogging these days. Thing is a) this platformy stuff is becoming ever more important b) writers are worrying a LOT about how to do it and how to do it better and c) I'm doing loads of talks about it at the moment and it's quite useful to have some posts where