This is the most popular of any application I've developed. It has many features including:
Member Control Panel that allows users to keep their account information up-to-date and includes avatar support.
Admin User Account and Control Panel that allows full user, message, and forum administration.
Special HTML tags that allow users to post links and alter text, (Regular HTML has been disabled for obvious reasons).
Clickable smilies that allow smilies in posts and replies.
Thread and reply tracking by ID for easy organization when needed.
Account security allows suspending and closing of accounts. When an account is closed, the user will not be able to re-open an account using the same email address. Closing an account is the same as email banning.

Want to add interactivity to your site? Looking for a way to communicate in an open forum, exchange exciting ideas, or just want to vent to your site members? TD Forum is an unthreaded messageboard script which can provide the perfect vehicle for messaging on your website. It comes packed with a ton of features...

The ActiveBoard is a powerful, multi-threaded, easy to use, easy to navigate and fully customizable message board system.

MYBoard is a MySQL Bulletin Board system . Formating of MYBoard can be done using a header and footer file aswell as setting a few variables within the cgi script. Once logged in, you as the Admin can create and delete forums aswell as edit your own and other users details. The script has the following features :
3 User levels - User, Moderator and Admin. An Admin can Create/Delete forums, edit user details and delete threads and users, A moderator can delete threads from the forum.
HTML allowed/disallowed - You can decide when installing the script if you want html allowed in posts
Threads or not - You decide how you want your forums to appear during installation, threaded shows a single post per page with links to responses/followups, Non threaded displays the whole thread on a single page.
Author name or username - How do you want post authors shown? you can decide during installation whether to display the authors username or real name.
User Registration - All users must be registered before reading the forums.
Users must verify their registration before they can post to the forums.
You will be emailed every time a new user verifies their registration.

The following new features have been added comparing with AtlantForum Free version:
Users can place messages with many photos and with multimedia file(.wav, .avi, .mp3 ...). Password protected editing, renewing, deleting messages by owners so that only original poster can modify or delete messages; Admin also can edit/delete messages via admin web interface; Password reminder.