Presentation time! This one started during my last stay at EA, I never completed it before now, so I couldn't present it live. As always, it has loads of notes and references, and in the current state is meant more as notes than a proper presentation.
Hopefully, the slide deck does some good explaining why, really, we need tonemapping (-when- we need it), reminds everybody to help artists validate their work from proper references, and shows a (common) way to split brightness from color, an implementation of what Photoshop calls "vibrance" and some other little tricks.
As far as tonemapping operators, it derives a few curves, one of which is fairly similar (but worse) to Mike Day's recent work. Use his instead :)