Yeah, for what it's worth I tend to check out a few of their properties most days. I stopped with the lolcats when the ironic crowd were overrun with the 'oh-it's-a-cute-kittie' crowd, but I still check out Fail Blog, Ugliest Tattoos, and Failbook. I think you're right that focused segments is the key to the growth and success so far.

http://failblog.org/ http://ugliesttattoos.com/ http://failbook.com/