This article by Howard Rheingold on "Attention and other 21st century social media literacies" is interesting.
Howard Rheingold (
howard@rheingold.com) is the author of 
Tools For Thought, 
The Virtual Community, 
Smart Mobs, and other books and is currently lecturer at the University of California, Berkeley, and Stanford University.
He says :
"I focus on five social media literacies:
 - Attention
- Participation
- Collaboration
- Network awareness
- Critical consumption
Although I consider attention to be fundamental to all the other  literacies, the one that links together all the others, and although it  is the one I will spend the most time discussing in this article, none  of these literacies live in isolation. They are  interconnected. You need to learn how to exercise mindful deployment of  your attention online if you are going to become a critical consumer of  digital media; productive use of Twitter or YouTube requires knowledge  of who your public is, how your participation meets their needs (and  what you get in return), and how memes flow through networked publics.  Ultimately, the most important fluency is not in mastering a particular  literacy but in being able to put all five of these literacies together  into a way of being in digital culture."