9. A system comprising: one or more computers and one or more storage devices storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising: receiving, from a user device of a first user, a media object and a query associated with the media object, wherein the query requests information related to content presented in the media object; providing for presentation the media object and the query to a plurality of second users different from the first user; receiving a suggested answer to the query from one or more second users of the plurality of second users, wherein a suggested answer from a particular second user is either (i) a new suggested answer submitted by the particular second user in response to the query or (ii) associated with a previous suggested answer to the query, the previous suggested answer being a suggested answer previously submitted by a different second user of the plurality of second users in response to the query and providing for presentation one or more of the suggested answers to the first user.
9. A system comprising: one or more computers and one or more storage devices storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising: receiving, from a user device of a first user, a media object and a query associated with the media object, wherein the query requests information related to content presented in the media object; providing for presentation the media object and the query to a plurality of second users different from the first user; receiving a suggested answer to the query from one or more second users of the plurality of second users, wherein a suggested answer from a particular second user is either (i) a new suggested answer submitted by the particular second user in response to the query or (ii) associated with a previous suggested answer to the query, the previous suggested answer being a suggested answer previously submitted by a different second user of the plurality of second users in response to the query and providing for presentation one or more of the suggested answers to the first user. 10. The system of claim 9 , wherein the suggested answer associated with the previous suggested answer to the query is derived from the previous suggested answer.