1) there is a program called latex2html recently upgraded by ITC which
works quite well (better than it used to). It is one way in which
you can display equations on the web.

You use it to convert a tex file to an html file by the command
        /contrib/bin/latex2html <texfile.tex>
To see what the output looks use you browser to look at
        http://www.math.Virginia.EDU/~db5d/M521/solutions_chapterI/

latex2html creates a directory <texfile>
Run the command
        chmod -R go+xr <texfile>
in order to give read and execute rights, put it in
your public_html directory and then anyone can see it in their
browsers.
 

2) auctex users: I have just upgraded auctex on weyl: it will look a
little different from the old one in the menus but should work
better. Let me know of problems. You can still get the old
version by changing, in your .emacs file, the line
        (setq load-path (cons "/auc/Auctex-9.81" load-path))
to
        (setq load-path (cons "/auc/Auctex-9.0" load-path))
 
 

3) Emacs users: There are two very nice programs for running TeX and
LaTeX available within emacs, which improve on the standard emacs
tex mode. They are called auctex and ultratex respectively. These
programs make it possible to run all the standard commands such as
            latex
            view
            print
            create postscript file
            ghostview the postscript file
            bibtex
            latex2html
inside emacs. There are commands to find errors, insert
standard latex constructions, comment out regions, ....
auctex is menu driven which makes it initially easier to use but
ultratex is the better program because it gives colors and it is so
smart that it completes latex constructions as soon as it
recognizes them from a typed fragment.