Rickrolling, The Success Kid and The Trololo guy.  Not only are they subject to 'Cat-breaded Taylor Swifting' parody on South Park; but they appear within the viral public space without much public knowledge as to how they got there.  

It's a phenomenon that many people who don't grace the likes of 4chan don't necessarily know much about.  This is where the infographic, courtesy of Neo Mammalian Studios comes in, detailing some of the most popular memes, the culture surrounding them and memetic (study of memes) connection to evolutionary theory.