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.

Ars Technica

Boasting almost 14 million posts, Ars Technica is one of the biggest and oldest technical forums still operating today. They use phpBB to power their forums and comment system.

Synology

Support for Synology NAS devices and ideas for future versions of the DiskStation software.

Bokt.nl

Independent site for Dutch horse lovers. With over 280,000 members and 95 million posts, Bokt.nl is widely acclaimed as one of the largest boards powered by phpBB.

Gentoo

Gentoo Linux is an open source operating system built on top of the Linux kernel and based on the Portage package management system.

Forex Station

Professional online broker and trading community.

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