My slides from my talk at LDNIA #2 April 17th 2013. http://ldnia.com/?p=34 These will make no sense without the me talking bit. I may record the audio at some point and combine them. I'll also add the link to a transcript once I've done that too. Images are CC Licensed (except where they're not) follow each image URL to view their correct licence. the CC Licence of this deck is ShareAlike to reflect the images used that are ShareAlike, but refere to individual images for exact rights.