1. A method of ranking curations, the method comprising: receiving a query; calculating, based on the query, a content similarity measurement for each of a plurality of curations; extracting, from each of the plurality of curations, a plurality of curation-specific features; calculating a curation credit measurement for each of the plurality of curations based on the extracted plurality of curation-specific features; and ranking each of the plurality of curations based on the corresponding content similarity measurement and the corresponding curation credit measurement.