This virus information site has been providing some of the best anti-virus information since 1994.  Virus descriptions are arranged in alphabetical order or searchable by keyword. 
 

Free Email Address Directory :  http://www.emailaddresses.com

A thorough guide to free email services on the Internet, mostly Web based.  Each entry has a description of the features of the service, and users are invited to post comments.  Browsable by service name.

Internet FAQ Archives :  http://www.faqs.org

FAQ's (Frequently Asked Questions) have been produced by numerous Usenet groups on the Internet.  This database archives FAQ's and is searchable by keyword, or browsable by subject, FAQ name, newsgroup name, or author. 
 

The List :  http://thelist.internet.com

This site is an international guide to Internet Service Providers.  Includes over 9,400 ISP's searchable by area code or country. 
 

Netiquette Home Page :  http://www.albion.com/netiquette

Includes the core rules for netiquette (etiquette for the Internet), as well as the complete online edition of the book Netiquette by Virginia Shea.