1. A system for locating and retrieving information, comprising: an aggregated search index comprising document indexes from multiple restricted sources, wherein the aggregated search index also comprises indications of whether indexed electronic content corresponds to one or more rendered documents; and a search engine operatively coupled with the aggregated search index, wherein the search engine is configured to determine whether information associated with a search query is based on information captured from a rendered document and to search the aggregated search index in response to receiving the search query.