I'm sure you're already familiar with YouTube, the online video sharing site.
It's easy to dismiss it after indulging in a marathon of clips from America's Funniest Home Videos and revisiting all your favorite music videos from the '80s.
But there's actually useful stuff there too!
This link will take you to the list of Adobe CS3 tutorials. Although it might be old hat for seasoned designers, it's a useful resource for people just getting started in CS3.
Unfortunately, I'm not sure if watching these while waiting for your clients to return your phone call counts as billable hours. ;-)