Thanks to Phil Wadler for bringing this 15 minute video to my attention. It's a really interesting meditation on new media by Clay Shirky. He contrasts old media - which has been solely about consumpion; to new media - which is (also) about production and sharing. Old media consumption is pretty huge - two hundred billion hours are spent in the US every year watching TV! This "spare time", Clay calls the "cognitive surplus". Just a small shift towards production and sharing of information, i.e. putting the cognitive surplus to a different use, could yield great things. Clay estimates that 100 million hours have been put into Wikipedia.
Watch it for yourself and see what you think.