Lukas,
It might make sense to add this to the about section of the main site [2]. Its sort of marketing-ish I would sayYes, it's marketing the other guys. Why would we want to do that?
I think the appropriate place for this is Techdocs, so that it can be maintained by the community easily. For example, I can see a fair amout of data I'd want to add to it (like which forks are dead and which are still around).
--Josh Berkus