Inline Discussions in Search Results Around Real-Time Clusterings

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving a search query, identifying a plurality of search results that are responsive to the search query, the plurality of search results including a plurality of items of digital content distributed using one or more social networking services, and determining that one or more terms provided in the search query is an active keyword and, in response: defining a first sub-set of items, the first sub-set of items including items of the plurality of items of digital content and being responsive to the active keyword, and providing items in the first sub-set of items for display as a discussion stream within search results.