A tagboard (also called shoutbox, saybox or chatterbox) is a box of text messages that is included in web sites to allow people to leave messages quickly and usually without having to register.Them more simple, are only lists of messages short, whose page is goes updating periodically to keep visible the last messages, eliminating them more ancient.They usually have a moderator who can delete and censor messages, addresses and undesirable comments or obscene words.