We all know that collectively, we must go through an insane amount of data across the globe through the Internet. Now we have some solid numbers to play with, in 2008 alone the world's servers processed an insane 9.57 zettabytes (ZB) of information. This data even underestimates as it does not include exclusive private servers built by Google, Microsoft and others.
Whichever way you look at it, the number is very difficult to fathom - consider that there are 1000TB's in a Petabyte and then 1000PB's in an Exabyte, with finally, 1000EB's in a single Zettabyte and you'll finally get the picture. I'd like this type of storage at home, thanks.