1. A method of determining relevance of a content identifier, comprising: receiving, at a direct answer computer system, a search query over a network; determining, at the direct answer computer system, one or more answer entities from one or more answer candidate snippets, wherein an answer candidate snippet comprises at least a portion of content available over the network for an answer candidate; determining, at the direct answer computer system, a content identifier for an answer candidate; determining a popularity for the content identifier and adjusting an indicator of the relevance for the content identifier in accordance with the popularity of the content identifier, wherein the popularity of the content identifier comprises a click count for the content identifier, a click count for a main web site for the content identifier, a count of references to the content identifier, and a count of references to the main web site; tokenizing, at the direct answer computer system, a title for the content identifier; and performing a comparison, at the direct answer computer system, between a vector of tokens for the title and a vector of the one or more answer entities; adjusting an indicator of the relevance for the content identifier in accordance with the comparison; and sending at least one answer candidate snippet for a response to the search query.