IP Performance Metrics Charter IP Performance Metrics (IPPM) Working Group at IETF. http://www.ietf.org/html.charters/ippm-charter.html

Raw IP Networking FAQ Answers questions regarding raw IP or low-level IP networking, specifically raw sockets and network monitoring APIs. http://www.whitefang.com/rin/index.html

Internet Protocol Detail Record (IPDR) Consortium-driven standard for collecting IP-based usage and control information to support service providers. http://www.ipdr.org/

What Is My IP Address? Free service automatically determines one's address on the Internet. http://www.whatismyipaddress.com/

RFC 791 - Internet Protocol Request For Comments 791 documents the fundamental workings of IP. http://www.faqs.org/rfcs/rfc791.html

TDMoIP - TDM over IP Application of Time Division Multiplexing technology in transporting voice and data over high-performance IP networks. http://www.tdmoip.com/

Foundations of the Internet Protocol ACM Crossroads magazine article explains network protocol concepts, IP packets, and IP addressing. http://www.acm.org/crossroads/columns/connector/july2000.html

ipSwitchboard Site tracks the IP address of computers on the Internet, particularly Web and FTP servers. http://www.ipswitchboard.com/

Connected - The IP Protocol Section 3 of "Connected: An Internet Encyclopedia" discusses datagrams and streams, subnetting, and the delivery model. http://www.freesoft.org/CIE/Course/Section3/

MyWanIP Free utility detects one's current IP address from behind a router. http://www.mywanip.com/

IP Self Test This 18-question online quiz tests your knowledge of the nuts and bolts of Internet Protocol. http://compnetworking.about.com/library/weekly/aa081000a.htm

Museum of Broken Packets Collection of broken, malformed, or peculiar packets found on the Internet, with theories as to how they came to be. http://lcamtuf.coredump.cx/mobp/

Church of IP Includes FAQs, tips, discussion board, tools, and recommended books. http://www.churchofip.org/

Internet Protocol Flow Information eXport - IPFIX Internet Drafts and RFCs from the Evaluation Process on the IETF-Research-Group. http://ipfix.doit.wisc.edu/

Using Samba Book by O'Reilly HTML version of the book. http://www.oreilly.com/catalog/samba/chapter/book/index.html