The Sections takes a look at the Web, couple tips, for everything else I recommend to go over to www.htmlgoodies.com this is a excellent resource for all html guidance. 

The "Code Layout" looks at Perl and CGI and goes through the basics of laying out the code to easily control and access various function and forms within a single script

The "Hyper Telnet" looks at using hypertext to link telnet to html to provide a interactive network diagrams.

The "Menu" looks at the simple menu system used on this site and shows you how to easy create the cascading menu you see in the left hand column.