1. A system, comprising: a user input device, a display, a memory device, and a processor programmed to: identify a plurality of links in a collection of one or more documents, each link having an associated source and destination, the source representing a location in the collection of documents from which the link points and the destination representing a location to which the link points; and display a visual representation of the identified links, the visual representation including information describing the sources and destinations for each of the identified links, two or more of the links being selectable as a group for simultaneous modification in response to user input in the visual representation.