agency dilemma on selling ads on social media

There are new ways on selling ads instead of TV, radio, local news, and magazine. The way is the internet. But, it also has to be distinguished by to format. The impression and the google and social media way. The impression is simply working like the way ads presented in traditional campaign while the latter way provide more niche market for specific customer.

David Spark in http://www.socialmedia.biz/2009/07/23/the-ad-agencys-dilemma-convincing-clients-to-engage-in-social-media/#more-13834 tells us how to convince company to start selling ads in the internet, off course for the specific users