1. European Laboratory for Particle Physics (CERN) World Wide Web site (http://www.cern.ch/).
2. The World Wide Web Consortium (W3C) World Wide Web sites (http://www.w3.org/pub/WWW/).
3. BJC Health System Infection Control Newsletter World Wide Web site (http://osler.wustl.edu/≈traynor/bjcicn.html).
4. Merit Network, inc.file transfer protocole site (p://nic.merit.net/statistics/nsfnet/history.hosts).