Uniform Resource Identifier (URI)
Providers of URI Protocol resources.
Email Protocols
IMAP, SMTP and POP information and services.

Extensible Markup Language (XML)
Offering XML programming services.

FTP Protocol
Providers of FTP Protocol resources.

Uniform Resource Identifier (URI) web listing
EarthWeb
Provides recent articles, events, and links related to internet topics, including protocols.

Internet.com
Specializes in comprehensive news and research with various issues involving the internet and protocols.

Intranet Journal
Provides special reports and FAQ's involving the technology industry, including internet protocols.

Webopedia
Uniform Resource Identifier (URI) 200Tips. Online dictionary and search engine featuring computer and Internet technology definitions.

Uniform Resource Identifier - Wikipedia, the free encyclopedia
Uniform Resource Identifier (URI) 200Tips. A Uniform Resource Identifier (URI), is a compact string of characters used to ... Venn diagram of Uniform Resource Identifier (URI) scheme categories. ...

Uniform Resource Identifier (URI): Generic Syntax
A Uniform Resource Identifier (URI) is a compact sequence of characters that ... A Uniform Resource Identifier (URI) provides a simple and extensible means for ...

Web Naming and Addressing Overview (URIs, URLs, ...)

rfc 2396
Abstract A Uniform Resource Identifier (URI) is a compact string of characters ... term "Uniform Resource Locator" (URL) refers to the subset of URI that identify ...

rfc 3986
... January 2005 Uniform Resource Identifier (URI): Generic Syntax Status ... Abstract A Uniform Resource Identifier (URI) is a compact sequence of characters ...

RFC 2396 (rfc2396) - Uniform Resource Identifiers (URI): Generic Syntax
RFC 2396 - Uniform Resource Identifiers (URI): Generic Syntax ... Abstract A Uniform Resource Identifier (URI) is a compact string of characters ...