I've just read a article that lists 21 things you need to do in order to properly pitch a story to blogs. Some good advice there. It's only a list of tips, not a maual on how to do social media PR or anything. But worth a read:
"Obviously incorporating all 21 points into your next pitch of a blogger might be a little too much to ask - but as both a blogger and someone has done my fair share of pitching I would recommend at least attempting to incorporate some of the above."
Thanks to Jonny Rosemont for the link.