Matt Fritz has an article on how to keep the paint on plastic miniature wargaming figures.
I’ve always found painting 10mm and 6mm wargames figures to be difficult. Brumbaer has this guide that hopefully will make things easier.
Ray Trochim has a guide to assembling and painting the miniature ships for your Napoleonic wargames.
Having trouble doing proper flesh tones on your wargames miniatures? From Slave To Paint studios, comes a guide to painting flesh.
Who needs that crazy non-metal metallic (NMM) miniatures painting style. Slave to Paint studios has this tutorial on painting metallics on your wargaming miniatures the traditional way: with metallic paint.