I am teaching a live webinar, How the Internet Really Works, on Safari Books Online on the 20th of March. I have expanded the material a bit, and plan to slow down a little, so it is now a four hour session. Generally, I start with DNS, then look at routing, then finally at organizations and other odds and ends. My general goal is for you have a broad overview of the technical bits, as well as an understanding of the costs and income streams of the major players. I will probably also discuss some of the current challenges facing the Internet, as I have a little bit more time, including the problems transit providers are facing and the general “centralization of everything” we are starting to see.