9. The method of claim 1 , further comprising: determining a respective ranking score for each of the entities of the second entity type; and ordering the entities of the second entity type according to the ranking scores.
10. The method of claim 9 , wherein the ranking score for a particular entity of the second entity type is based at least in part on how frequently a recognized reference to the particular entity co-occurs with a recognized reference to the first entity in resources indexed by an indexing engine.