Matt Antonino has a great post on NiltoMil about the Long Tail and it’s applicability to microstock photography. I think the core of Matt’s thesis is spot on and the long tail framework is a useful way to think about your microstock portfolio.

A concrete example of this thinking as it applies to microstock is when shooting people. While the vast majority of microstock images sold are of shiny, happy, smiling people, there is still demand for other emotions and moods. If you’re on a shoot and can work in the emotional variations easily, it’s probably worth doing.