- Free Protocols Foundation
- An independent public forum, dedicated to the support of patent-free protocols. - Health Level 7 (HL7)
- HL7 is a protocol for formatting, transmitting and receiving data in a healthcare environment. - Internet Content Adaptation Protocol (ICAP)
- Lightweight protocol to enable servers and proxies to pass web requests and responses to an application server for adaptation. - Internet Engineering Task Force (IETF)@
- IP Address Locator
- Lookup service provided for free by Geobytes, Inc. - iSCSI Storage
- News and links for the storage over IP network protocol. Technologies include Storage Area Networks (SANs), Network Attached Storage (NAS), routers, switches, and management software. - MLDv2
- Describes the implementation of the MLDv2 protocol done jointly at LIP6-Paris and LSIIT-Strasbourg. - National Industrial Information Infrastructure Protocol Consortium(NIIIP)
- To develop open industry software protocols that will make it possible for manufacturers and their suppliers to effectively interoperate as if they were part of the same enterprise - NFS (Network File System)@
- Protocols.com
- Contains articles and technical information about data communication and telecommunication protocols. - SIAM
- A multimedia protocol created for building telematic applications and online services, based on Client Server architecture, using HTML and graphic capabilities. - SIPP - Simple Internet Protocol Plus
 - SLIP (Serial Line IP) (1)
- SSL (Secure Sockets Layer)@
- Universal Plug and Play (UPnP) Forum
- Initiative designed to enable easy and robust connectivity among stand-alone devices and PCs from many different vendors. - XNS.org
- Independent international nonprofit organisation managing XNS (eXtensible Name Service), an open protocol and open-source platform for universal addressing, automated data exchange, and privacy control. The specification is built on XML and web agents. - Zmodem Protocol

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