A static web site, is generally a site that is informational with no interactions with the viewer. Although this sounds a little sparse and uneventful, it does provide a means to let your customers know the services and products you have to offer. Contact information would list your telephone numbers and address. The information you can provide is unlimited.
A dynamic web site, is a site that provides your viewers with a means to contact you on the internet as well as by telephone and mail. Having an e-mail account can be very useful to communicate with customers. Besides e-mail processing, a dynamic web site can present animations, music, sound tracks or other visual demonstrations.
e-commerce web site can provide your customers a means to not only view your inventory and services, but to order them as well.