Attached Link: "How to make a surface a light" thread (swiftly derailed by me)

The fresnel effect thread is a great one, because the reflect/refract nodes are key to a lot of great effects, and BB has gone to great lengths to look at how to replicate various reflective surfaces.

Another one I'd recommend looking for here is about lighting in Poser. I can't remember quite how the thread started, but if you look for the terms fall-off, and my name, then you should find it. I (semi) hijacked another thread about accurate lighting in Poser, and asked BB if he knew how to create a proper lightset that would behave accurately, regarding the inverse square law of falloff. To his credit, BB duly came up with a cracking solution which I still use in most of my renders. In fact, to save you the bother of trying to track it down, just follow the lin at the top of this post. :)

JonTheCelt