Webmonkey

http://www.hotwired.com/webmonkey/

HTML Goodies

http://www.htmlgoodies.com/primers/basics.html

Page Resource: HTML Pit Stop

http://www.pageresource.com/html/index.html

The HTML Writers Guild

http://www.hwg.org/

CWRU Introduction to HTML

http://www.cwru.edu/help/introHTML/toc.html

NCSA - A Beginner's Guide to HTML

http://www.ncsa.uiuc.edu/General/Internet/WWW/HTMLPrimer.html

Ask Dr. Web

http://www.zeldman.com/askdrweb/

CNet: How the Net Works

http://coverage.cnet.com/Content/Features/Techno/Networks/index.html