1. A method comprising: in a networked data store, collecting information relating to multi-screen media consumption of plural individuals, in which for each of said plural individuals there is an associated first screen and second screen, and for each of said plural individuals the collected information indicating an item of primary entertainment content rendered on the associated first screen, and an item of secondary content selected by the individual for rendering on the associated second screen in conjunction with the primary entertainment content; receiving data indicating an item of primary entertainment being viewed by a consumer, the consumer having not been associated with the plural individuals during collecting information, in which the received data comprises data derived from ambient audio sampled by a network-connected portable appliance, in which the consumer is associated with a first screen and a second screen; and based on said collected information, transmitting data proposing one or more items of secondary content for rendering on the associated second screen in conjunction with said item of primary entertainment being viewed by the consumer.