Firebird Experts Forum – fastest forum i have ever seen is powered by firebird
The forum here is created using the phpBB Software, available on phpbb.com. It is a great and free Open Source Solution and since version 3, it has full support for firebird. This installation uses apache 2.0, phpBB 3.01, php 5.21 and firebird 2.1 on windows 2003 server.