I Can Has Cheezburger?
Launched: January, 2007
Revenue: Estimated $5,600 a month based on ad rates and self-reported traffic data
This blog, consisting of silly photos of cats, and even sillier captions, rocketed to the top of the blogosphere a few months after a Hawaii-based pair started it on a lark. Since its launch in January, Cheezburger's traffic has doubled each month, and the blog now gets half a million page views a day, accounting for a third of the traffic on the WordPress blogging platform, according to Eric Nakagawa, aka Cheezburger. "If you hit a niche and you can build a community, you might not have a $1 million idea, but you might have a $10,000 or a $100,000 idea," says Nakagawa, who gave up his job as a software developer to play Cheezburger full-time. (His partner, "Tofuburger," still has a day job.) A week of ads on Cheezburger, via Blogads, starts at $500 and tops out at $5,400 for a premium position. The site also sells through Google AdSense and AdBrite platforms. It recently ranked No. 26 on the most-linked-to blogs list on Technorati.