The 1000 Foot General has a photo tutorial on painting skeletons from Reaper’s Bones line.
15mm Painting Advice
Zrune Lord has a brief photo tutorial on painting a 15mm orc. I find it interesting that he uses inks on his 15mm figures. I’ve never tried that, instead relying on blocking and dry brushing.
Here’s an interesting use of an ultrasonic bath to recover paints that have separated.
Matting Acrylics With Talc
The Waving Flag has an article on creating a matte effect in acrylics with talc.
Black Undercoat Painting Tutorial
My painting life hanged when I switched over from white to black undercoat. Here’s a tutorial on using black undercoats.