When you let people upload and download as many videos as they want, lots of them will take you up on the offer. That’s the magic of Free psychology: an estimated seventy-five billion videos will be served up by YouTube this year. Although the magic of Free technology means that the cost of serving up each video is “close enough to free to round down,” “close enough to free” multiplied by seventy-five billion is still a very large number.
Via Daring Fireball
It should be noted that Chris Anderson’s book Free, has an RRP of £18.99, though a free e-book version will be available in the week of publication.