The title gives it away, I know. But I do agree with Steve Rubel. Curiosity is a very important career skill these days. At least in our industry, where things are changing so fast, that typical approaches of a few years ago might no longer work – or at least not be the best approaches out there.
You don’t have to try everything or follow every single new Web2.0 gadget, website, or whatever. But you need an inherent interest in the movements happening out there.