There existed a project called BKO (boot.kernel.org) that allowed for network booting over the internet.  It spawned child sites like boot.fedoraproject.org, but in late 2011 went offline, never to return.  Boot Boot is the successor to BKO and aims to go beyond what BKO was originally doing, extending supported OSes and platforms using it.

This is intended as an overview of not only network booting, but network booting over the Internet, as well as the complexities and issues involving such a service / infrastructure, as well as how to use and integrate it into existing infrastructure.