If you’ve never spent any time at productdesignforums.com, you should check it out. Some time ago, user ScottieB posted a tutorial for sketching in AliasStudio. When I was getting started with digital sketching, info like this was scarce. It was written for a past version of the software, but the general ideas should be enough to get someone started.
WelcomeIDBoost is my own experiment to try to catalog some of the skills-based learning resources for designers I have found online. I'll post bits of info as I find or remember them. For more info on me, my design work, or my Gnomon Workshop DVD, visit www.speckofdustin.com. -Dustin Brown