http://www.dl4all.com/fgq/tag/operating+system+design+and+principles+e+book.html
http://vmlinux.org/jocke/mirror/www.acm.uiuc.edu/sigops/roll_your_own/index.html
http://sites.google.com/site/otherosproject/
http://www.cs.uwaterloo.ca/~brecht/courses/4321/Welcome.html
http://www.gilesbathgate.com/2009/11/how-to-write-an-operating-system-part-2/
GoodBye