This is a very interesting post. Scroll down the page and view his (45 minute) keynote from the BMA conference this year. Just the first few minutes will inform, so give it a shot.
Social media marketing explained in 61 words: “You can buy attention (advertising) You can beg for attention from the media (PR) You can bug people one at a time to get attention (sales) Or you can earn attention by creating something interesting and valuable and then publishing…