Over at the official forums, the chat log for the recent custom content discussion has been posted.

[REP]Khaveen: Question #1: <Jasperre> Will you be adding your information to the NWN2 Wiki custom content section pretty please wish sugar on top?

[OEI]RTaylor: Sorry about the delay. Still working out some logistics of this chat. Yeah, writing up more information is something I'm hoping to start working on soon.

I plan on writing up documentation for the GUI stuff first, including information on the UI objects and their attributes, as well as documenting all of the GUI callbacks and their parameters.

[OEI]Rob: We are also setting up a "blog" to centralize the many questions and answers that come up.. perhaps a little more will go there too

[OEI]RTaylor: After documenting the GUI, I'd move into other areas where it's hard to get information, like what the various idx parameters are when querying data from Effects, and things like that. Places where you can't know what it does without seeing the code or trying over and over.