Well, actually yes!
There's ONE good SEO magazine that comes out here in Germany, out of 5?
Then there's "Internet World Business" build like a newspaper, it's good to know whats up in the big business, new start-ups, etc.
Further, everytime 30 min to 1 hour before I fall asleep, I read normal books. If not about Philosopy, then books from investment bankers, enterpreteurs, psychology, one long-tail book, classic marketing, and so one.
Everything business related
You need to be educated and prepared, if you take internet marketing serious.
..and I never ever can read a "(e)book" on a monitor, I can't stay focused.