Abstract: Among other disclosed subject matter, a computer program product includes instructions that when executed by a processor perform a method for providing content in a network. The method includes receiving an identifier that is forwarded from a device in a network and associated with content divided into content portions that are to be delivered to the device. The method includes selecting a content source in the network for each of the respective content portions, wherein for at least one of the content portions the content source is selected among multiple content sources associated with the respective content portion using recorded information about the multiple content sources. The method includes forwarding, in response to the identifier, source information to the device that identifies each selected content source and is configured for use by the device in requesting at least one of the multiple content portions from each selected content source.