Is it possible that the nature of user's attention has changed, and continues to change in reaction to a change in communication brought about by social networks? I'm trying to dive into more in-depth, research backed positions about some of the key issues that have been bothering me. I'm using my background to find empirical information, rather than rely on anecdotal evidence. Most of the articles I read in other blogs on this subject rely on anecdotal evidence: increases in spam, increased search eliminating the need to know (when you can look up)  read more »