Chuck Norris Facts meme might be very very very old but man, they are still funny like its 2005. Just don't repeat it too much though because by then, its not that funny anymore and Chuck Norris himself will roundhouse kick your face.
Apparently, Blizzard has acquired the service of Mr. Norris for one of their recent commercial for World of Warcraft and used the meme as the subject for the ad. Not bad, Blizzard. Not bad indeed.