Polyvore was a community-powered social commerce website headquartered in Mountain View, California. The company's virtual mood board function allowed community members to add products into a shared product index, and use them to create image collages called "Sets". They could browse other users' sets for inspiration, share sets with friends and interact with people through comments and likes. Due to the visual nature of the tool Polyvore was mostly used to build sets in the fields of home decoration, beauty and fashion. Online retailers, too, could upload their product images to Polyvore and link back to their product pages or use Polyvore to encourage users to showcase their products through such activities as board creation competitions.