Kitteh pics? Love 'em, and it turns out a measurable percentage of internet traffic is cat pics. Heh.
Apparently enough so that one of the antitobacco commercials on TV is trying to push the idea of second hand smoke causing cancer in cats which would mean (somehow) no more cute kitty videos on the web.
While I find the commercials an annoying waste of money, the convolutions of logic are appalling. It would take years to watch all the currently posted videos at a rate of 1 per minute24/7/365, but the cats wouldn't be stillborn anyway. Besides, tell a teenager they can't do something and, often, it will be the first thing they do...