This program was created solely to give me a tool to figure out what was on my 10.x.x.x network (I have a large VPN that keeps growing). All it does is tie into nmap to scan various /24 networks in parallel, and eventually will spit the output in HTML format wherever I tell it to. Not very useful for other people, but I suppose it could help understand forks, execlps, piping and HTML
You can grab the source via subversion here