The site, which features funny photos of cats with captions in goofy broken English, launched in January 2007. With more than 10,000 videos and photos uploaded each day, all content is created by fans.
CEO Ben Huh attributes the success of the Cheezburger Network to a cultural phenomenon.
"It really points towards human behavior. People like to laugh and they want to share the things that they find funny with other people," he said. "Also, people like to think they are funny so when others laugh, it gives them credibility."