Marta Kagen has put up a pretty compelling presentation with facts and arguments to support the rise of social media. It is well put together and visually very attractive. There are no really new facts in here but it is good to have a presentation that brings everything to one place. Marta takes a poke at advertising but pretty much avoids traditional print media. I’d love to see her put this presentation up as a wiki and make it something others can add to over time.