A system for displaying, on a computer screen, information concerning the interrelationships of documents. A system employing the present invention also allows for the efficient research of documents that cite a document shown on the computer screen. In one embodiment, the present invention involves displaying at least a portion of a first document and simultaneously displaying a representation of one or more citing documents. The citing documents cite some portion of the displayed document. In another embodiment, the invention involves displaying at least a portion of a first document, and displaying a representation of one or more citing documents, wherein the displayed citing documents cite the displayed portion of the first document.