If you think the choice in your local record store is daunting, then just wait till the long tail uncoils its infinite length. Trawling through the blogosphere, or the millions of bands in MySpace, or the tens of millions of videos on YouTube for the one or two blogs or songs or videos with real value isn't viable for those of us with a life or a full-time job. The one resource that is challenged all the more by this long tail of amateur content is our time - the most limited and precious resource of all.
Andrew Keen, The cult of the amateur
Derisory in a couple of places, but at same time interesting in others, Keen's book is enlightening. It is the proof itself that we should be more careful with what we digest and how we process the information we receive each day from more and more places.
Therefore I recently unsubscribed from a couple of blog updates in my reader that were only challenging my most precious resource.