What is a shoutbox?A shoutbox, saybox, tagboard, chatterbox or chat box allows people to quickly leave messages on the website without any form of user registration. Shoutboxes are simply lists of short messages. The page gets automatically refreshed after a certain interval to keep new messages visible. Shoutboxes are embedded into a page with inline frames. Many Internet forum and blog software packages can be modified to add shoutboxes in sidebars on site pages. Unlike most dynamic content shoutboxes are generally placed on every page of a website.