For people who wants to know what is inside linux kernel, maybe this map is helpful. This is a map that explain a lot of how kernel works. An author said it could navigated similar to google map. All indetifier on the map are linked to the LXR, a toolset for indexing and presenting linux source code. Either you can view an online version or buy the poster from that map.
Link site: http://www.linuxdriver.co.il/kernel_map
