Technologies for identifying and recommending dimension values for a content delivery campaign are provided. Disclosed techniques include receiving, from a content provider, input that selects one or more entities. In response to receiving the input, a plurality of dimension values are identified from each of the one or more entities. Dimension values may represent attributes associated with entities. A set of dimension values for recommendation may be identified from the plurality of dimension values previously identified. The set of dimension values for recommendation may be presented to the content provider for the purpose of generating a content delivery campaign based upon the recommended set of dimension values.