“…..an understanding of the psychology of your audience can help you navigate the constant changes on social media. Social media is always about people. Even if the tools change, people are not going to change and social media tools are ways to talk to people.”
via http://www.socialmediaexaminer.com/social-persuasion-how-to-move-people-to-action/ – there is a very informative podcast on this post with Derek Halpern of http://socialtriggers.com/