www.w3schools.com
www.htmlhelp.com
www.htmlref.com
www.web-source.net/html_codes_chart.htm
www.htmldog.com
www.december.com/html
www.tizag.com
www.html-tags.info
www.htmlcodetutorial.com
webmaster.lycos.co.uk
www.w3.org/MarkUp