A form on a website is similar in concept to a form on paper, except that you create it online and use it to interact with and gather information from website visitors.
Typically, site visitors enter information into form fields and indicate their preferences by clicking option buttons, check boxes, and drop-down boxes. Site visitors can also type comments into text boxes or text areas.
You can use forms on your website to:
Retrieve contact information from site visitors (for example, guest books).
Receive feedback about your website.
Accept orders and gather shipping and billing information.
Provide online registration.
Offer search box mechanisms.
Prompt users to log in to your website.