Web sites on UNIX systems use directories, too. Many ISPs organize their Web servers by user, so if your username is fred , your Web site is called http://www.myisp.com/fred or maybe http://www.myisp.com/~fred/ . The site’s home page is usually a file called indexl in the site’s home directory, and the other pages are files whose names match their URLs, so a page named http://www.myisp.com/fred/effluentl is stored in a file called effluentl . If your site has more than a handful of pages, you should organize it into directories. Not by coincidence, the syntax of URLs is almost exactly the same as the syntax of UNIX filenames, so if you organize your site so that a page is called http://www.myisp.com/fred/ Greenstuff/Smelly/effluentl , the file is called Greenstuff/ Smelly/effluentl .A few directory names are reserved for special Web server purposes, so you have to be careful to avoid them. The list varies from server to server (this is UNIX, after all), but the directory cgi-bin is invariably reserved for CGI scripts, programs that the Web server runs to produce pages on the fly. Check with your Web host to find out the reserved directory names on your system.