I was hoping for something similar to: http://en.wikipedia.org/wiki/The_Thirty-Six_Dramatic_Situations which purports to list all of the possible dramatic plot primitives.

I've got a great idea for a (web-based) service, and need to figure out how to make it at least minimally self-supporting before I go any further. I was hoping to use a list of revenue models to generate ideas/brainstorm.

Thanks!