Seth Godin's point about information overload seems well made:
Ten years ago, you had a shot of at least being aware of everything that mattered. Five years ago, you had to be really selective about what you took in, but at least it was possible to know what you didn't know. Today, it's impossible. Today, you can't even read every article on a thin slice of a thin topic.
You can't keep up with the status of your friends on the social networks. No way. You can't read every important blog… you can't even read all the blogs that tell you what the important blogs are saying.
Used to be, you could finish reading your email, hit "check email" and nothing new would show up. Now, of course, the new mail is probably a longer list than the mail you just finished processing.
The internet isn't full, but we are.