http://mikeos.berlios.de/write-your-own-os.html http://www.osdever.net/bkerndev/ http://en.skelix.org/skelixos/ http://www.jamesmolloy.co.uk/tutorial_html/index.html http://homepage.ntlworld.com/edmund.grimley-evans/bcompiler.html http://www.stanford.edu/class/cs140/projects/pintos/pintos.html Requires build-essential, nasm and qemu