I was due to be in Brussells on Monday to present on the subject of using mobile social networks to target advertising.For a variety of reasons I can't make it. My good friend Jonathan Macdonald is going to fill in for me. Many thanks for that.Still, I'd done all the prep work so I'd rather share that than waste it. Right below you'll find the slide deck and then below that my notes to go with them. It's not quite the real thing - but if it gets you thinking and makes you want to take the conversation in va