Methods, systems, and apparatus, including computer programs encoded on computer storage media, for triggering rich results in response to publication queries. In one aspect, a method includes receiving a publication query. One or more publication search results are obtained. A rich result is triggered based on a score of the first-ranked publication result if it meets a threshold relative to other publication search results. The rich result is populated with additional metadata about the publication obtained from web resources and product resources from multiple corpora. The rich result is provided with the publication search results.