Useful Mods, Plugins and Hacks for PunBB
Logicfury - Lightweight CMS
Mega Pun - PunBB with lots of mods and plugins setup for you already
Link Directory - PunBB modified into a Link Directory
Easy BBCode - Add BBcode to your forums easily, the only mod the creator of PunBB has made (all the others are made by users or other developers) I recommend to modify it so that there are spaces around the smilies so they appear properly
BB Spam Fighter - nice mod, if you don’t feel like using the hacks I’ve shown on this site