How can I make a folder browsable?

By default, the web server will only allow users to view pages for which they have given a specific URL (e.g. ) or index.html or index.php pages implied by specifying directory names (e.g. http://www.math.mcmaster.ca/mathcomputing/, which impies http://www.math.mcmaster.ca/mathcomputing/index.php). If you want users to be able to browse the contents of a web folder (like so), put the following line in a file called .htaccess in the folder:

Options +Indexes

That folder and all folders below it will be browsable.

For full details, see Options Directive for .htaccess at apache.org.