This page has links to stuff that frequently comes up.

DNS
First and foremost, the entire concept of today's Internet relies on the Domain Name System, the thing that converts a human-memorable name such as "www.mediazulu.com" to the IP address of the server where the expected info the human associates with the name can be found and delivered in a sensible format. On a typical computer, this service is provided by something called "DNS servers" (usually you have to enter two of them, although if you are on a WiFi network, that assignment may happen automatically and you won't worry about it until it stops working, and you have to contact your local geek (like me!))

The DNS servers keep information associating names and numbers. The full and official spec for this service is called RFC 1035, (link here), and it is useful to check it out -- not so much because you will geekishly remember all the details, but because, in addition to the details themselves, the RFC ('request for comment') indicates exactly how the Internet geeks talk to each other and collaboratively have created an immense, flexible (although a bit creaky at times) system that is the world's nervous system. The RFC phenomenon itself is probably a bigger story than the Internet.