Other
Internet Society: A Brief History of the Internet
A brief history of the internet, written by those who were involved in the development evolution of the Internet. This history revolves around four distinct aspects: the technological evolution, operations and management aspect of a...
Wikimedia
Wikipedia: Router
Wikipedia offers a detailed encyclopedia definition of the term, "router," including hyperlinked terms and links to router manufacturers and a picture of what a router looks like.
Khan Academy
Khan Academy: Ip Addresses
Check your understanding of IP addresses (v4 and v6), in this set of free practice questions designed for AP Computer Science Principles students.
Other
The Shuler Family: How Does the Internet Work?
Here you can get a technical but accessbile overview of the Internet. Learn about Internet addresses, networking infrastructure, Internet routing hierarchy, domain names, Internet protocols, and so on. Illustrated.
Other
Linux Documentation Project: How Does the Internet Work?
Find out how the Internet works by exploring some key Internet concepts. Here you can read about hostnames and locations, the domain name system, packets and routers, TCP and IP, and HTTP.
Tech Target
Tech Target: Search Networking: File Transfer Protocol
This definition of File Transfer Protocol (FTP) features links to related computer and networking terms.