in terms of tools that may power some of the clones out there, in looking around i see this one: https://github.com/antirez/lamernews https://github.com/antire

in terms of tools that may power some of the clones out there, in looking around i see this one: https://github.com/antirez/lamernews https://github.com/antirez/lamernews which powers a couple of sites. this one's demo site seems down: https://github.com/jaekwon/YCatalyst https://github.com/jaekwon/YCatalyst not entirely sure what sites it powers. these may help you find some of the more community-specific clones out there.