Petabytes are huge.
I know the more computer-savvy readers are chortling at my naivete right about now-- and frankly, I'm a little embarrassed that I didn't realize that we were already on the next order of magnitude for data, considering that we just got a 1TB external harddrive-- but my mind is boggled. One million gigabytes. That's a lot of pirated movies.
Speaking of, this little putting-things-in-a-practical-perspective factoid really threw me for a loop: "As of December 2007, YouTube had a datatraffic of 27 petabytes per month." Jesus H. Christ, people, how many times can you watch OK Go jumping around on treadmills?