I remember a long time ago I saw this site, and I thought it was great. I thought that was only the beginning and we would see more of that stuff. Unfortunately that has not been the case.
I hope Pascal Brisset, resumes his effort, it would be pretty nice to see visually how the Linux Kernel has been developing. If he doesn’t I might try to do it.
Anyway, that makes me think about the Free Code Graphing Project. For huge projects a graphical representation of how stuff is organized helps a lot. Even small projects might benefit from that. It would be great to have some kind of IDE plug-in that generates a map so you can easily navigate through the huge code. Until now only Doxygen has helped me with such kind of projects.