[I've just noticed that the omniti.com re-design broke the various links from my blog to the slides I had been storing there.

So I'm trying out slideshare; I'll be revisiting the slides I've given in the past and blogging one entry per presentation]

Here are the extended slides from my PDO talk.

When I first put this talk together it was for a long hour slot, but conference sessions started to diminish in length and I had to pull...