Joshua Plunkett takes new users on a tour of Campaign Cartographer 3+ in this video tutorial. You can view many more execellent tutorials on his YouTube channel.
CC3 Video Tutorials
Joseph Sweeney (www.the-sweeneys.com) takes you through creating overland maps with CC3 and using sheet effects to enhance them. Originally published in the Cartographer's Annual 2008, these tutorials are simply too useful to not make them generally available.