MULTI-SOURCE SEARCH

One or more techniques and/or systems are provided for query suggestion formulation for multi-source queries, for ranking multi-source search results, and/or for exposing contextual launch functionality through multi-source search results of a multi-source search interface. In an example, a query suggestion may be provided for a partial search query based upon an implied content source that corresponds to a search intent of a user (e.g., an intent to view videos, as opposed to images, of houses). In another example, relevancy ranks may be assigned to content sources based upon a content type preference of a user, and search results may be provided from content sources having relevancy rankings above a relevancy threshold. In another example, links to applications and/or execution contexts may be embedded within search results so that applications may be launched into contextually aware states from the search results.