1. A method comprising: receiving, from a first device, a request for categorical information, the request specifying a category; storing a collection of shared categorical information; determining relevant categorical information from the collection, the relevant categorical information comprising categorical data representative of a content item, wherein the categorical data is responsive to the category, and wherein the categorical data includes location information for the content item, wherein the location information satisfies a location-based conditional setting of the first device; and providing, to the first device, the relevant categorical information for representation as a graphical object at a location in a map on a display, wherein the location corresponds to the location information.