I love this: the periodic table of storytelling. Check it out. It's hilarious to see all the "elements" of stories laid out "scientifically". I feel like making it into a poster!
It reminds me slightly of Jasper Fforde's The Well of Lost Plots, in which his main character, Thursday Next, discovers the great libraries of the Book World and its underworld dealing in clichés, plot devices and original ideas as literal currency.