1. A system for including a hyperlink in a document, comprising: a communications interface configured to receive a first document; a processor configured to: determine an entity pair comprising a textual representation included in the first document and a concept determined to be associated with the textual representation, wherein the concept comprises a node concept in a concept taxonomy; and provide as output a hyperlink to a second document determined to be associated with the entity pair; and a memory coupled to the processor and configured to provide the processor with instructions; wherein the processor is further configured to evaluate the popularity of the concept at least in part by determining the number of times the concept is included in a hyperlink in a corpus of documents; and wherein the textual representation is associated with each of a respective first and second meaning, and wherein determining the number of times the concept is included in a hyperlink in the corpus of documents includes: (1) counting the number of times the first meaning is included in a hyperlink in the corpus of documents and (2) counting the number of times the second meaning is included in a hyperlink in the corpus of documents.