Open Source Development Network - 
The OSDN brings many of the Open Source community's favorite gathering places together and makes it easier to move between them.

A Quantitative Profile of a Community of Open Source Linux Developers - http://www.ibiblio.org/osrt/develpro.html
University of North Carolina, Chapel Hill, study: histories, analyses, explanations.

Intel Open Source Computer Vision Library - http://www.intel.com/research/mrl/research/opencv/
The computer vision library will provide a wide range of functions, including gesture recognition, object-tracking, face recognition and camera calibration, that will help researchers develop ways to use "computer vision" as a method for people to interact with computers.

Open Source Resources - http://opensource.ucc.ie/
Resource site for Open Source Software researchers. Contains a bibliography, news and opinion sources, and links.

Free-soft.org - http://www.free-soft.org/
General information on Free Software (Open Source) and its community

World Wide Web Consortium - http://www.w3.org/
International industry consortium founded in 1994 whose purpose is to develop specifications, guidelines, software, and tools to promote the Internet's evolution and ensure its interoperability.

CERN httpd - http://www.w3.org/Daemon/
No longer maintained, but possibly of historical interest.

NCSA HTTPd - http://hoohoo.ncsa.uiuc.edu/
No longer supported, site still includes extensive documentation.

Zeus Web Server - http://www.zeus.com/
The world's most scalable high performance web server software, providing solutions for content providers, ISP hosting, intranets and secure e-commerce with comprehensive support.

Roxen Platform - http://www.roxen.com
Commercial offering based on the Roxen GPL server but with many more features.

 AOLserver - http://aolserver.com/
Open-source web server by America Online, multithreaded, Tcl-enabled, massively-scalable and extensible, also features database integration and a dynamic page scripting language (ADP).

The SRE-http project - http://www.srehttp.org/
dedicated to the provision of free, WWW-aware software to the OS/2 community. Written primarily in REXX, theflagship product is the SRE-http http/1.1 server for OS/2.

Roxen Webserver - http://www.roxen.com/products/webserver/
Web server and application server which includes support for RXML, a tag-based language for constructing dynamic content. Allows tag plugins to be written in Pike.

Plesk Server Administrator - http://www.plesk.com/
World-class, innovative new product designed to make web server management easier for everyone.

Common Lisp Hypermedia Server: CL-HTTP - http://www.ai.mit.edu/projects/iiip/doc/cl-http/home-page.html
A highly portable http/1. 1 server which supports cgi, server-side lisp programs, java, javascript.

Netcraft: Web Server Survey - http://uptime.netcraft.com/

W3C Hypertext Transfer Protocol Overview - http://www.w3.org/Protocols/
This is the overview materials related to the W3C HTTP activity, one of the W3C Architecture domain activities. HTTP has been in use by the World Wide Web since 1990 and its use has increased steadily over the years, mainly because it has proven useful as a generic middleware protocol.

Hypertext Transfer Protocol - Next Generation Overview - http://www.w3.org/Protocols/HTTP-NG/
The purpose of the HTTP-NG Project is to tackle current HTTP deficiencies by using sound engineering practices.

RFC1945 - HTTP/1.0 Specification - http://www.w3.org/Protocols/rfc1945/rfc1945
Despite the improvements made in version 1.1, HTTP/1.0 is still widely used around the Internet.

Improving HTTP Latency - http://archive.ncsa.uiuc.edu/SDG/IT94/Proceedings/DDay/mogul/HTTPLatency.html
Paper by Venkata N. Padmanabhan and Jeffrey C. Mogul.

PEP - http://www.w3.org/TR/WD-http-pep
W3C working draft of an Extension Mechanism for HTTP.

Amaya - http://www.w3.org/Amaya/
W3C's open source browser/editor for testing and evaluating new standards. Supports XHTML, MathML, SVG and CSS.

DocZilla - http://www.doczilla.com/
Browser with support for SGML, XML, HyTime, CALS tables, RDF, and XLink based on the Mozilla Gecko rendering engine.

Clue Java Web Browser - http://www.netcluesoft.com/
Web browser written entirely in Java. Supports HTML 4.0, Cascading Style Sheets, Document Object Model, JavaScript and Java applets.

NCSA Mosaic - http://www.ncsa.uiuc.edu/SDG/Software/Mosaic/NCSAMosaicHome.html
The original graphical browser, with an interesting site map feature. Development ceased in January 1997. Supports only HTML 3.2, and cannot navigate to virtual domain names.

HotJava - http://java.sun.com/products/archive/hotjava/
Discontinued Java based browser by Sun.

Microsoft Internet Explorer - http://www.microsoft.com/windows/ie/
Official Microsoft site.

IEBlog - http://blogs.msdn.com/ie/
Weblog about Microsoft Internet Explorer issues and news.

StopIE - http://www.stopie.com/
Anti-Internet Explorer site. Describes problems and alternatives.

IE Info Site - http://www.ieinfosite.co.uk/
Information, tips and tricks; links to other Internet Explorer sites and programs designed for IE.

Spread Firefox - http://www.spreadfirefox.com/
Firefox evangelism projects and reports.

Introduction to Firefox - http://www.nidelven-it.no/articles/introduction_to_firefox
Tutorial with screenshots for novice and intermediate computer users.

Netscape Browser - http://browser.netscape.com/ns8/
Official site. Includes downloads and technical information.

Silly Dog 701 - http://sillydog.org/
Netscape and Mozilla information site with changelogs and message board.

InfoBlox Inc. - http://www.infoblox.com/
Plug-and-play server appliances for the Large Enterprise market. These appliances combine software, customized operating system, and optimized hardware into a simple to use system that is ready to use in 10 minutes. Simple web browser interface means IT staff is freed from unnecessary complexity.

Obsidian Communication Server - http://www.obsidian.co.za/
Suite of services and training for Linux.

SSH (Secure Shell) - http://www.ssh.org/
SSH is the standard for secure file transfer and remote logins over the internet. All traffic, including terminal emulation and X11 traffic, is encrypted and optionally compressed.

Ensim - http://www.ensim.com/
Ensim's product line includes control panels, virtual private servers, server management, as well as Microsoft Exchange hosting software.