MBoard PHP message board
A message board that is ideal for webmasters who don't need or want big forums on their sites. It doesn't require any SQL databases. It stores all posts as HTML pages (to minimize the load on your server) and features smileys, instant new post notification, easy deletion of inappropriate posts, style customization and more. It even comes with e-mail protection against SPAM harvesters and a bad words filter which will replace all bad words with ****. You can modify the look by editing header/footer and style files.