There is one important fact missing from this article, and that is appealing to the different generations mindset separately. It is crucial if social media is ever going to become a viable media to compete with the rest of the traditional media for ad dollars. Appealing to a generations mindset in delivering a message and ads will address the privacy issue that is a major problem with social media. It's much easier appealing to a generations mindset then trying to find out everything that a person does in order to help sell their products.
Go to www.genergraphics.com and you will find out what I mean.