The Konoha Archive Library (, Konoha Toshodokoro; Literally meaning "Tree Leaf Ancient Book Place") is built into the same mountain that has the Hokage Monument. Information on its ninja past and current is stored there, as well as other points of interest such as Akatsuki as well as other sensitive village information.
Naruto: The Shinobi's Shroud [Open]
A little more than your average Naruto guild