.php, etc. different?
How do I password-protect my web pages?
How much bandwidth/data transfer does my site use?
How fast is my website?
Why do some elements end with /> in XHTML pages?
How do I add a MIME content type to my web server?
What versions of HTML and XHTML exist, and when should I use them?
How do I force the browser to download a file to disk instead of playing or displaying it?
How do I test the performance of my website?
How do I mirror another website?
How do I measure the size of a website?
How do I redirect the browser to a new page?
How do I put a PowerPoint presentation on my website?
How do I link to a UseNet newsgroup from a web page?