FUDforum Hosting
It is the goal of FUDforum to provide a complete and robust forum package that can satisfy all of your needs. Thus, a lot of features are available, however they are too numerous to list here.

SMF Hosting
Elegant. Effective. Powerful. Free. SMF is all of the above. SMF is a next-generation community software package and is jam-packed with features, while at the same time having a minimal impact on resources. And, yes, it is free.

Vanilla Hosting
Vanilla is an open-source, standards-compliant, multi-lingual, theme-able, pluggable discussion forum for the web. With over 450 plugins so far, Vanilla is ideal for custom community solutions. Vanilla has been adopted by over 300,000 businesses, brands, and fans.

eXtreme Message Board Hosting
XMB is short for eXtreme Message Board and it is a free message board powered by PHP and MySQL. Out-of-the-box, the forum is quite simple compared to its commercial competitors, but a substantial amount of modifications exist to add new features. The extensive control panel allows extreme control over all aspects of the message board system including these features: unlimited posts, forums, members, administration panel, members panel, multiple themes, word censors, user ranks, custom titles, member list, whos online, delete, open, close, move and more.

AEF Board Hosting
The full name of AEF is Advanced Electron Forum. This bulletin board software is free software. It is written in PHP and MySQL. AEF has a very simple and easy to use Administration Panel and installing this software is a piece of cake! You can install new themes, customize themes the way you want. The User Control Panel has a simple yet beautiful interface where users can set their preferences for the board. This Bulletin board or forum software has all the general features that a forum software should have. It also includes features such as : - UTF-8 Supported - Search Engine Optimization Tools - IP Ban - W3C Validated - News System with articles - ShoutBox - Threaded Mode for topics - JS DOCK for easy navigation(A first from AEF) - WYSIWYG Editors - Customizable Themes - Multiple Languages supported - Time Zone Adjustment - Automatic Updates - Export Files and Database - Suggest Framework for usernames while writing PM's - Domdrag for reordering Categories, Forums, emoticons (A new feature included for the first time ever in a forum software.)

Beehive Hosting
Beehive is an open-source project for creating a high-configurable frame-based discussion forum. It provides frames-based layout, reply-to-user, e-mail notification, HTML-posting, signatures, friends & killfiles, user promotion/demotion and full admin tools.

bbPress Hosting
bbPress is plain and simple forum software. It’s easy to use, easy to administrate, fast and clean. But don’t let its simplicity deceive you; underneath the gleam, it’s got some powerful features and is highly customizable. bbPress is focused on web standards, ease of use, ease of integration, and speed. It offers great add on features through an extensive plugin system.

DeluxeBB Hosting
DeluxeBB is a powerful open source bulletin board, which helps you create your own web communities in less than 10 minutes. The board is written completely in PHP and uses a MySQL database to store its content. All pages are optimized for speed and security. DeluxeBB producers believe it is not necessary to overload the software with features like many other forum providers. DeluxeBB always keeps the speed, security and easy handling as primary objectives. Moreover, DeluxeBB provides its community members with a specific forum for feature requests and user created mods and add-ons.

IceBB Hosting
IceBB is a powerful, fast, free, and open-source forum solution powered by the free PHP and MySQL. IceBB scales well, no matter how many users or posts, due to it's clean and efficient code. It is also fully customizable, with full skin and language support, plus a powerful admin control center.