That's not necessarily on your computer, so don't start panicking about the broadband bills just yet. A report published by the University of California worked out that each American mind processes 34GB of content, through computing, TV, radio, reading and other forms of entertainment.

As a whole, the US consumed 3.6 zettabytes of information last year, or one billion trillion bytes. Can someone work out the bill for that? [University of California report via NY Times Bits]