Are your digital painting skills in need for some tips and maybe even a few tricks? ctrl+Paint has got some great videos for you.
There's a series of videos on their site, all hosted on Vimeo, that will walk you through some of the basics of painting with ones and zeros. No zeds, sorry. If you've never made your own brush in Photoshop, then you need to watch these.
Thanks to Matabus for the link.