The world of YouTube ads had a little bit of everything, from eye-popping extreme sports ads by Red Bull and DC Shoes to touching Christmas ads as well as three -- no kidding, three -- videos featuring Justin Bieber.
The most shared, though, was the imaginative infomercial created by Melbourne's public transportation authority to warn commuters of the dangers of crossing the rails or standing too close to the platform edge. Titled "Dumb Ways to Die," the ad features colorful fruit cartoons dying in the most unimaginable ways. The dark humor and funny delivery turns out to be a very effective way of saying "Just be careful."
Political ads make an appearance too, on the heels of the U.S. elections, and there are a few videos that were present in our previous list as well.