Pinterest has worked with brands including TopShop, as it deepens its relationship with brands and gives them more reasons to use the site. The move comes after Pinterest opened up its platform to developers in May. That meant any business could use Pinterest data to come up with ways to engage with their customers. For most brands, that has meant integrating a 'Pin It' button. However, TopShop has taken this one step further with its in-house developers coming up with a "Pinterest Palette."