Wendersnaven.com (a resource for nwn2 builders)

jackyo123 posted a cutscene tutorial here:
http://nwvault.ign.com/View.php?view=NWN2Tutorials.Detail&id=65

From the NWN2 Teakguides:

There's a good tutorial on nwn2toolset.com on using the visual effects editor, where he takes you though the process of making a snow effect.

Check it out here:
http://www.nwn2toolset.dayjo.org/ToolsetTuts/plugin/visualeffects.html

Rob McGinnis has been posting a series of posts in the Obsidian Entertainment NWN2 Developer Blog. There's a ton of information in there, and they seem to be posting one a week. Here is the link to the full category of posts:

http://forums.obsidianent.com/index.php?automodule=blog&blogid=2&&cat=7

The walkmesh helper is a tool created by Zarathustra217 and apparently quietly slipped into the 1.05 patch.

Some time ago, Papermonk posted some tips about conversations from David Gaider. I recently ran across it and thought it might be good to revisit. Here's a quote from his intro:

Styraxian pointed out this article by Kevin Carter that talks about the placement of NPC/Creatures and their relationship to the environment.

There's a fun suite of name generators over at Seventh Sanctum that has a lot of good resources.

Check it out here:
http://www.seventhsanctum.com/index-name.php

Here are some of the more useful generators listed:

Don't ask my why, but I needed to come up with Kobold names and started looking around. It's an odd subject to do a google search for and the results are even stranger.

My favorite, and probably the most useful, was this:

The Kobold Namer
http://www.dungeonraiders.com/files/kamb/

Just keep hitting refresh for more names.

A great tool for making changes to your area is TerraCoppa, by Tani. The most obvious benefit of this tool is being able to rotate areas, so that north matches with north. Here is Tani's description: