Wow, this is weird. Yesterday, on my work - home commute, I was thinking exactly this. I realized that the massive usage of Internet has led me to have more difficulties in concentrating and studying, and in general keeping focus on a given task, while at the same time has given me an edge over less intensive web users I know when it comes to extrapolate a more or less superficial meaning from a resource like an article such as this, or a discussion, or even a picture. I wonder if these two aspects could somehow 'live together', that is, have the brain 'switch' to a certain mode when doing a certain task.
edit: and I'm kinda worried about this.