Abstract: Embodiments are provided for facilitating playback of media content on a webpage by a playback zone in a media playback system. Upon, or subsequent to opening a web-browsing interface, one or more playback zones of a media playback system may be identified, and links to a playable media item may be identified on a webpage to be displayed by the web-browsing interface. The webpage may then be modified such that a representation associated with the link may be selected to prompt a display of the one or more identified playback zones. A selection of one of the one or more identified playback zones may then cause the media item to be played in the selected playback zone.

Abstract: Embodiments are provided for facilitating playback of media content on a webpage by a playback zone in a media playback system. Upon, or subsequent to opening a web-browsing interface, one or more playback zones of a media playback system may be identified, and links to a playable media item may be identified on a webpage to be displayed by the web-browsing interface. The webpage may then be modified such that a representation associated with the link may be selected to prompt a display of the one or more identified playback zones. A selection of one of the one or more identified playback zones may then cause the media item to be played in the selected playback zone.

Abstract: Embodiments are described herein that help allow for applying policies during playback of media. In one aspect, a method is provided that involves a computing device of a media playback system (a) receiving a request to playback one or more media items that are from a playlist associated with a controller application, (b) applying to the one or more media items one or more playback policies that are associated with the controller application, where a given playback policy restricts at least one aspect of playback of at least one of the one or more media items, and (c) causing playback of the one or more media items in accordance with the one or more playback policies.

Abstract: A computer system configured to provide fault tolerance includes a first host system and a second host system. The first host system is programmed to monitor a number of portions of memory of the first host system that have been modified by a guest running on the first host system and, upon determining that the number of portions exceeds a threshold level, determine that a checkpoint needs to be created. Upon determining that the checkpoint needs to be created, operation of the guest is paused and checkpoint data is generated. After generating the checkpoint data, operation of the guest is resumed while the checkpoint data is transmitted to the second host system.