Just to expand on that idea, this is how I see this 'library' (should it be done):
Throughout the thread, the 'librarian' would add completed civs, as they are completed. In the first post would be links to all the posts with a compiled, completed civ. And the rest of the thread could be devoted to people discussing civ attributes, and others posting/linking to info and graphics. And all info, etc. for each civ would then be compiled into single posts, each completed civ getting one. These posts would be of course scatttered througout the thread, but again, each of those could be linked to in the first post (in the interest of easy access and all).
Good idea? Bad idea? Or am I even making sense?
So all we need is someone willing to start this up....