BusinessCyber.com contains a long list of computer resources related to business cyber, cyberspace, dynamic & multimedia, Internet broadcasting, chat, E-mail, hardware, software development and much more.
XNS.org
Independent organization managing the eXtensible Name Service, an open protocol and open-source platform for universal addressing, automated data exchange, and privacy control. http://www.xns.org/
EndRun Technologies
Offers timing equipment designed to work in conjunction with NTP.
Protocols.com
Features an overview of various networking and mobile communications protocols, white papers, and links of interest.
Bear Mountain Software
BMS's TOPPER network and email management tool performs real-time monitoring, alerting, and reporting for NT and Unix-based systems.
Squid Proxy Server
is probably the most known proxy server today. It is distributed under the GNU license and runs on all UNIX-like platforms.
najk.com
najk.com offers some ping, tracert, nslookup, and basic WHOIS for web users.