The Audi TT Forum

Active community for UK based Audi TT owners. Almost 30k members and 2 million posts, complete with unique style & powered by phpBB.

Open Cart Forums

OpenCart is popular, powerful, and easy to use shopping cart software. Their healthy community forums are powered by phpBB.

xkcd

Discussion board for the massively popular xkcd web comic. Covering everything from Maths and Science to Logic Puzzles and Forum Games. Over 100k members and 2.4 Million posts.

Raspberry Pi

The Raspberry Pi is a cheap, credit-card sized computer. The official website uses phpBB for their discussion forums.

Joomla Forums

Joomla is one of the leading open-source Content Management Systems. With a userbase of over 400,000, they use phpBB as a reliable platform for support.

KDE

KDE is mainly known for producing the KDE Desktop Environment (used in Kubuntu) for Linux.

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