Why do I spend some much energy on this kind of stuff? I.E.; social media, blogs, feedreaders, etc.? Maybe this is a partial explanation.

Clay Shirky believes we’re biased both to share and to like sharing digital information. Given the rate at which we create, share, and then discard digital goods, he may be right. The problem is that we’re now wading through digital debris, and there may be hard costs associated with our wastefulness.

Filling the digital landfills of our lives | The Open Road – CNET News

Of course it’s no more wasteful than TV.