| 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. |
| 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. |
| MyWanIP | | Free utility detects one's current IP address from behind a router. |
| Raw IP Networking FAQ | | Answers questions regarding raw IP or low-level IP networking, specifically raw sockets and network monitoring APIs. |
| TDMoIP - TDM over IP | | Application of Time Division Multiplexing technology in transporting voice and data over high-performance IP networks. | |
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