Cisco predicts that global Internet IP traffic will get to 2/3 of a trillion GB (a trillion GB is a zettabyte) per year by 2013. They also predict that video will constitute 90% of this traffic, which is not surprising.
Consider that a Google insider revealed that YouTube streams about 1.2 billion videos per day. Ahh, remember the good old days when getting a million hits to your website per month was considered ‘big traffic’? Now think a billion per day and it’s streaming video!