Comments on News Organizations Tap into Twitter, Facebook to Generate Ad RevenueTypePad2010-02-01T20:01:00ZBill Mitchellhttps://poynter.blogs.com/poynter_online/tag:typepad.com,2003:https://poynter.blogs.com/poynter_online/2010/02/news-organizations-tap-into-twitter-facebook-to-generate-ad-revenue/comments/atom.xml/