<p>An <b>Internet forum</b>, or <b>message board</b>, is an <a class="mw-redirect" title="Online" href="https://en.wikipedia.org/wiki/Online">online</a> discussion site where people can hold conversations in the form of posted messages. They differ from <a class="mw-redirect" title="Chat rooms" href="https://en.wikipedia.org/wiki/Chat_rooms">chat rooms</a> in that messages are often longer than one line of text, and are at least temporarily archived.</p>