I read about the Internet Radio Linking Project (IRLP) in QST. It sounded like a great way to revive my ham radio activity. I order the board that would connect with my linux box. I even bought a 2-meter radio that would be surely compatible. I still needed help from a local ham to get the linux audio drivers installed and the proper ports forwarded through my router. But then, I'm on the air and hacking IRLP software.
IRLP Wiki offering wire-line control of my IRLP node.
Compass Rose plotted IRLP nodes around the world in an intentionally-distorted map.
IRLP Script Call Map where I read the shell scripts and generate dot files so that I can understand the scramble that controls IRLP nodes.