phpBB 2.x Shoutbox is a simple PHP and AJAX shoutbox script that is fully integrated with the phpBB system. Once you have installed it you can place it in any of your phpBB forum template files.

Through the use of AJAX, every time a new shout is posted by someone, it will instantly display in the shoutbox without the page having to be refreshed.

It is fully customizable. You can allow guests to post, select the number of shouts to display and even change the name of the shoutbox.

It automatically inherits the style of the forums. If your forums have multiple style options, it uses the style the user has selected.