This past quarter, I taught a storytelling class at Miami Ad School with some really talented, enthusiastic first-quarter writers. Here's a list of some of the source materials I used as examples and sometimes just stole from to make myself sound like I knew what I was talking about:
On Teaching and Writing Fiction by Wallace Stegner
On Writing by Stephen King
The Comic Toolbox by John Vorhaus
Improv Wisdom by Patricia Madson
The Handbook of Short Story Writing, Volumes I and II, by Writer's Digest
Building Believable Characters by Marc McCutcheon
The Moth Stories
This video from J.J. Abrams.
Various lists, such as this one by Elmore Leonard and this one by John Steinbeck
Writing samples from writers much better than myself, including Edward Abbey, James Agee, Sherwood Anderson, Donald Antrim, Roberto Bolaño, Richard Brautigan, Jon Clinch, Mark Costello, Patrick deWitt, A.M. Homes, Dan Kennedy, Chip Kidd, J Robert Lennon, Cormac McCarthy, David Mitchell, Tim O'Brien, Helen Oyeyemi, J.D. Salinger, Jim Shepard, Hunter S. Thompson and David Foster Wallace.