For the past six years, cartoonist Dakota McFadzean (Twitter, Tumblr) has been drawing a comic strip a day. On January 10, he finally completed his required minimum of six years of daily comic strips as outlined by the Government of Canada’s Cartooning Standards Act of 1967 and recognized by the Canadian Ministry of Comics, Cartooning and Clock Repair. The previous sentence sounds almost plausible to me, but then, I've been attempting to read his mindbending comic from the beginning.
Sad Sack George Baker's subtly subversive WWII strip.
Comic Strip Artist's Kit Carson Van Osten's tips for cartoonists and animators, scanned huge for easy printout.
The Center for Cartoon Studies, nestled in the historic village of White River Junction, Vermont, will learn you up good on how to be a comic artist/graphic novelist. They operate under the charter of the National Association of Comics Art Educators; Charles Schulz's widow Jean hooked them up with funding for a library in town. When you apply for admission, don't forget to include that story about you, the snowman, and the robot. A photo tour of the Center and its surroundings can be seen here.