This page is supposed to contain demonstrations, programs, and such items.
To see (toy) examples of interactive forms using cgi, you can try the following quizzes.
You can also see some information that this server and your browser provide (environmental variables).
You can view the results of various programs that convert LaTeX documents into other formats, on a sample file of mine.
You can build your own home page This is working but not fully debugged. I've leaving it up here, but there are much nicer HTML editors and home page builders available now, so I don't really recommend this program. (Actually the program may not work, because it depends on the use of the incoming ftp directory, and the directories there are periodically cleansed, which means that a directory this program needs may not exist.)