Americans consume 36 zettabytes of data most of it pixels

An estimate of US consumers' data consumption places the figure at 3.6 zettabytes per year.

But most of that comprises pixels temporarily thrown onto the screen, not bytes permanently written to media.

Source:
http://arstechnica.com/media/news/2009/12/americans-consume-36-zettabytes-of-data-most-of-it-pixels.ars