Grey Goat studios has this tutorial on airbrushing your wargaming miniatures.
Painting
Speed Painting
Sean K Reynolds has written a nice piece on speed painting. The theory is that what you want to do is put 100 figures on the table, not create 100 individual masterpieces. In recent years, I’ve done much more of the “good enough for the table” figures, and far fewer of the “showcase quality” types.
Keeping Paint On Plastic Figures
Matt Fritz has an article on how to keep the paint on plastic miniature wargaming figures.
Painting Warmaster Figures
I’ve always found painting 10mm and 6mm wargames figures to be difficult. Brumbaer has this guide that hopefully will make things easier.
Painting Napoleonic Ships
Ray Trochim has a guide to assembling and painting the miniature ships for your Napoleonic wargames.