This appendix consists of a web resource list for vBulletin. We've broken it down into general categories, although there is quite some crossover on certain sites. We recommend that you visit as many of these sites as possible—they contain a wealth of information about using, customizing, and modifying vBulletin.
While some of these sites will be providing information, software, and code for free, others are commercial enterprises and sell products and services. You may also like to check out our own website http://www.kingsley-hughes.com/books for further information and updates.