Instead of getting distracted by the tools and the terminologies, I focus on the four underlying themes in social media, the 4Cs of social media: Content, Collaboration, Community and Collective Intelligence. Taken together, these four themes constitute the value system of social media. I believe that the tools are transient, the buzzwords will change, but the value system embedded in these 4Cs is here to stay. So, let’s look at these 4Cs in some detail. - mathew ingram

This is so profound, wish many got this, if you follow the technology, you'll always be chasing your tail -- great comment on this one. - Maria Reyes-McDavis