Good programming reference guide for vBulletin 3.8

[rEd86]

Greetings.

I recently purchased vBulletin and I want to write some plugins/products. There are dozens of great plugins that I have downloaded and reviewed the source to get an idea of what's involved. I have read through the vBulletin API (what little there is) as well as the vBulletin 3.8 Manual but I am looking for more.

Is there a good reference guide/article you would recommend to help with some of the more advanced concepts? I want to understand what hooks are exposed and what I might be able to extend. I've learned a lot through reading through other people's code but I want a complete list of hooks so I can determine the best approach for some of the things I want to do. (extending the UserCP, etc)

Thanks for your help.

--Ed