Abstract: Disclosed are various embodiments for transmitting a plurality of files of a plurality of file systems associated with a corresponding plurality of users to each one of the users. In one embodiment, a jukebox service identifies files from file systems associated with each user requesting to consume the transmitted content. In one embodiment, the jukebox service identifies the files based in part on a plurality of disc jockey preferences provided by a disc jockey. The jukebox service then generates a jukebox playlist of the identified files having an order that is generated based at least in part on a playback profile associated with each one of the files. For instance, the playback profile may describe a playback frequency of the respective file. The jukebox service may then transmit the files over a network to clients of requesting users according to the order established by the jukebox playlist.

Abstract: Disclosed are various embodiments for replicating service requests. A service request is obtained from a client. A primary service and a secondary service are determined based at least in part on the service request and a routing configuration. The secondary service corresponds to another version of the primary service. The service request is routed to the primary service and potentially replicated to the secondary service. A service response to the service request is obtained from the primary service and then sent to the client.

Abstract: Disclosed are various embodiments for facilitating a user to design and test a layout to a network merchant site. One embodiment of such a method describes presenting at a display device a graphical interface to edit a layout of a network page in at least one graphical pane; receiving a selection of parameters to a trial experiment of one or more modifications made to the layout of a version of the network page designed in the graphical pane(s); and tracking at least one metric for the version of the network page designed in the graphical pane(s) based on interactions with the first sample class of users.