phpBB

phpBB is an Internet forum package written in the PHP scripting language. The name "phpBB" is an abbreviation of PHP Bulletin Board. Available under the GNU General Public License, phpBB is free and open source software.

Features of phpBB include support for multiple database engines (PostgreSQL, SQLite, MySQL, Oracle Database, Microsoft SQL Server), flat message structure (as opposed to threaded), hierarchical subforums, topic split/merge/lock, user groups, multiple attachments per post, full-text search, plugins and various notification options (e-mail, Jabber instant messaging, ATOM feeds).

Homepage: www.phpbb.com

phpBB is also home to a large community of individuals who contribute greatly to the overall project. Full of members dedicated to the open source movement, the community's user driven content such as MODs and styles available offers any phpBB user the ability the customize their board any way they see fit to do so.

In light of the success of their London meetup and in an effort to help with bridging the gap between team members and community members, on October 12, 2008, NeoThermic announced the creation of a new board on phpBB.com, "phpBB Events and Meetings."

phpBB is a free flat-forum bulletin board software solution that can be used to stay in touch with a group of people or can power your entire website. With an extensive database of user-created modifications and styles database containing hundreds of style and image packages to customise your board, you can create a very unique forum in minutes.

No other bulletin board software offers a greater complement of features, while maintaining efficiency and ease of use. Best of all, phpBB is completely free. We welcome you to test it for yourself today. If you have any questions please visit our Community Forum where our staff and members of the community will be happy to assist you with anything from configuring the software to modifying the code for individual needs.

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OSQA

OSQA is a question and answer system that helps manage and grow online communities similar to Stack Overflow.

OSQA is a free, entry-level Q&A system from the makers of AnswerHub, the market-leading professional Q&A platform. OSQA is a great solution for smaller sites with limited needs. Professional users who want custom theming, advanced security, SSO integration or plugin support should look at AnswerHub instead.

Homepage: www.osqa.net

OSQA (Open Source Question and Answer) is an open source question-answer system written in Python[1] with Django. The data layer relies on MySQL, PostgreSQL, Microsoft SQL Server or Sqlite. OSQA is licensed under GPL version 3 or later.

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Discourse

Discourse is an Internet forum software application founded in 2013 by Jeff Atwood, Robin Ward, and Sam Saffron.

From a usability perspective, Discourse breaks with existing forum software by including features recently popularized by large social networks[which?, such as infinite scrolling, live updates, expanding links, and drag and drop attachments. However, the stated goals of the project are social rather than technical: "to raise the standard of discussion on the web through better forum software."

Homepage: www.discourse.org

The application is written in Ruby, and is released under the GNU General Public License version 2.

Discourse is the 100% open source discussion platform with built in moderation and governance systems that let discussion communities protect themselves from trolls, spammers, and bad actors – even without official moderators. It is designed for hi-resolution tablets and advanced web browsers.

Some Features :

• 100% free and fully open source.
• All the sociological and technical lessons of 10+ year old forum communities baked into the design of the software.
• Sane, safe out of the box defaults, but a million dials and knobs to tweak.
• A built-in immune system from trolls, spammers and bad actors.
• A comprehensive forum culture support hub at discourse.org.

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