Polyvore enables users to mash and create their collage using brands' sponsored items. This is plasticity at its best i.e. enabling people to mix and mash. Beauty of this model is that brands are not doing any 'talking'. Instead, they are 'listening' by enabling users to do what they like. If companies are smart, they will be looking at what users are mashing their brands with.
This is really a re-invention of branding as we know it. By all means, Polyvore is not there yet but it is what it can be that is truly exciting. One to watch!
