TalkShop is a collection of Cgi scripts that allows you to run a highly customizable webforum on your website. Through TalkShop, visitors can post new messages, read messages, and respond to messages from other visitors, all via their browser. Messages are displayed in an easy to read threaded format by default, but visitors can also select to view the messages in chronological order, or view a summary of all the active threads in the forum.

DCForum is a complete web conferencing software for building and managing an online discussion community. Since 1997, countless webmasters from all over the world have chosen DCForum over its competitors. Whether you're managing your company's online support program or simply providing an interactive environment for Netizens of common interest, you'll find the proven technology you need in DCForum.

The X-Forum bulletin board is a free bulletin board, It can be used for every kind of website, even small web sites without database support.
The forum has powerfull features, which include guests posting limitations, reply e-mail notification for members, any many moderating tools. All these features are developed with security in mind.
Easy to install; File paths are automatically detected, and there are no settings that need to be updated before uploading.

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.

This script allows you to run message boards, similar to the WWW newsboards. Main features include: every user gets his/her password and thus only he/she can use his/her unique name, messages can be removed from the board by the writers, the board's administrater can log every action, there are several options to customize the board's design, single messages, whole threads or the whole content of the board can be emailed, and more.