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

The KA9Q Gopher & WWW Server
Description and background information for this free tool, of mainly historical interest.
http://www.lewis.org/ka9q/

SmartMax Software
MailMax and FTPMax products. Customer reviews, documentation and support pages. [Windows]
http://www.smartmax.com/

NetMAX Integrated Network Server Software
Includes Linux or FreeBSD, and a GUI to easily install and maintain. Comes with multiple services, including web server, file/print sharing, user administration, firewalls, reports on traffic and site use.
http://www.netmax.com/

Syndicate Pro News Server
Manages and distributes news headlines and other content over the Internet. Preview administration and user interfaces, sample output, FAQ. [Windows NT Server or 2000 Server]
http://www.syndicatepro.com/

Pragma Systems
TelnetServer, InterAccess, and TerminalServer products for Windows NT/2000. Specifications and free trial downloads.
http://www.pragmasys.com/

XCache
Caches and compresses your cold fusion and active server page improving your web site performance dramatically.
http://www.xcache.com

InfoBlox Inc.
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.
http://www.infoblox.com/

ZipBurst
CGI database tool, with search facility, and zip code location. Demonstration, FAQ, detailed product information. [Macintosh]
http://www.zipburst.com/

NIX Solutions, Ltd.
Custom software development services include secure client/server solutions. Company information, services, job openings.
http://www.nixsolutions.com/

iButton: Tiny InterNet Interface
System provides a variety of hardware with the ability to talk to networks. News, downloads, interest group, FAQ.
http://www.ibutton.com/TINI/

Netwin Software Corporation
E-mail, news, Web mail, FTP, and instant messaging products. Free trial versions, pricing details, support pages including full text manuals.
http://www.netwinsite.com/netwin-server-software.htm

commzGATE SMS Application Ser vers
An SMS messaging server for extending infrastructure with wireless messaging capabilities, such as enterprise system alerts, marketing messages and mobile collaboration.
http://www.commzgate.com/

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

Jabber XCP
Commercial implementation of the open source XML-based architecture.
http://www.jabber.com/index.cgi?CONTENT_ID=125

GoodTech Systems
Products include telnet, FTP, and SSH servers for Windows. Free 30-day trial available.
http://www.goodtechsys.com/

ClarkConnect
A Linux solution that recycles an old PC into an Internet gateway. News, mailing list, screen shots, download, documentation.
http://www.clarkconnect.com/