It's a FREE full function multi-thread messaging system sometimes called a Bulletin Board or Message Forum.

What features does it have?

• Simple to install, all you need is a MySQL or Postgres database and PHP >= 3.0.15
• Unlimited forums
• unlimited categories
• Cookies save username and password
• Cookies store your last visit, the board will show you which posts are new since you last visited
• Search Function
• Edit Messages
• Signatures- can be disabled by administrator
• Email notification when your message has a reply
• Bad language filter - all words definable by the administrator
• Users can retrieve lost passwords
• View categories on their own
• Smilies can be used in messages
• Private Forums
• Read-Only Forums
• Mass delete Messages
• Member System, with profiles
• Categories and forums
• Moderators with power only in specific forums
• Original ranks can be edited
• New ranks can be added
• Easy to use admin interface
• Design info is stored in templates, so it's easy to change
• Main page design is in html.php- it's editable HTML
• Private Messaging Add-on
• Who's online add-on
• Unlimited members
• Personal profile creation
• Optional IP Logging
• Banning by user name or IP address

To see FunkBoard CF in use just click on Forums in the menu bar at the top of this screen

FunkBoard is FREE.