Dynamic sites are
those that are Database driven. Whether it's an Access database using VBscript or MySql using PHP, sites using these
technologies produce Membership systems, polls, catalogues, shopping carts,
gambling sites, calendars and much more. The applications for the things
mentioned above have already been developed. It's really a matter of
installation. Sometimes you'll find that the application you're looking for
isn't even out there and needs to be written from scratch.