1. A method in a content recommendation system, the method comprising: under control of a computing system, extracting quotations from a corpus of text documents; identifying one or more entities that are referenced by each of the extracted quotations, each of the identified entities being electronically represented by the content recommendation system; indexing, by the computing system, the extracted quotations, wherein indexing the extracted quotations includes storing a speaker-verb-quote triple in an inverted index managed by the content recommendation system; determining one or more of the extracted quotations that match a received quotation search request; and providing the determined one or more quotations.