IPv6
Projects, Regional, RFCs, Software, Tunnel Broker, Vendor Support, Domain and Host List, HS247.com - IPv6 Links and Resource Site, Hurricane Electric - IPv6 Project Page, IPv4/IPv6 Address Information, IPv6 Accessible Sites, IPv6 Essentials by Silvia Hagen, IPv6 Forum, IPv6 how-to, IPv6 Information Page, IPv6 Links
Church of IP
Includes FAQs, tips, discussion board, tools, and recommended books.
Connected - The IP Protocol
Section 3 of "Connected: An Internet Encyclopedia" discusses datagrams and streams, subnetting, and the delivery model.
Foundations of the Internet Protocol
ACM Crossroads magazine article explains network protocol concepts, IP packets, and IP addressing.
Internet Protocol Detail Record (IPDR)
Consortium-driven standard for collecting IP-based usage and control information to support service providers.
Internet Protocol Flow Information eXport - IPFIX
Internet Drafts and RFCs from the Evaluation Process on the IETF-Research-Group.
IP Performance Metrics Charter
IP Performance Metrics (IPPM) Working Group at IETF.
IP Self Test
This 18-question online quiz tests your knowledge of the nuts and bolts of Internet Protocol.
ipSwitchboard
Site tracks the IP address of computers on the Internet, particularly Web and FTP servers.
IPTV News.net
Offers information and news on the evolving technologies of internet protocol television including hardware, software, and services.
Museum of Broken Packets
Collection of broken, malformed, or peculiar packets found on the Internet, with theories as to how they came to be.
Raw IP Networking FAQ
Answers questions regarding raw IP or low-level IP networking, specifically raw sockets and network monitoring APIs.
RFC 791 - Internet Protocol
Request For Comments 791 documents the fundamental workings of IP.
TDMoIP - TDM over IP
Application of Time Division Multiplexing technology in transporting voice and data over high-performance IP networks.
What Is My IP Address?
Free service automatically determines one's address on the Internet.