One example embodiment includes a method for indexing online references of an entity. The method includes identifying one or more channels of the Internet to be searched for references to an entity and identifying one or more signals to be evaluated within each of the one or more channels. The method also includes crawling the Internet for online references to the entity, wherein crawling the Internet comprises searching the one or more channels of the Internet for references to the entity and evaluating the one or more signals. The method further includes constructing a reverse index of the references, wherein the reverse index is based on each channel in which a reference is found and the one or more signals evaluated for the reference.