The Cheezeburger network bought Know Your Meme for 'a seven figure sum'

"In a deal that combines some of the Internet’s most loved memes with the definitive site chronicling them, the Cheezburger Network has acquired Rocketboom’s Know Your Meme. The acquisition, first reported by Tubefilter and confirmed by Rocketboom and Cheezburger, was reportedly valued in the low seven digits — though neither party would publicly comment on the price.
Know Your Meme was created in 2007 as a complement to videos Rocketboom was creating at the time. The site included a wiki designed to curate all the memes that were hitting the Internet, as well as a blog to chronicle all the latest meme news. But the most famous part of the project was probably the long-running Know Your Meme web show, which provided easy-to-understand video companions to many of the Internet’s most (in)famous memes."

Source:  GigaOM, 28th March 2011