When publishing URL’s on paper
Just a note: when you publish URL’s in your publications try not to publish the entire file name down to the extension. Why? If you decide or are forced to change the extension to make a dynamic page or take advantage of PHP, the page is no good.
Example:
http://web.uwaterloo.ca/index.html (bad)
http://web.uwaterloo.ca/ (good)
Another problem could arise from Dreamweaver itself. A lot of people have not fixed their install to create .html pages and are instead creating pages with the .htm on the end.
This is a friendly reminder to be careful when you publish web related things. Of course there is a way to fix it if you already have published a URL that you have changed by accident, just ask 