Abstract: A method is provided for maintaining a list of content channels that a user of a multi-channel content service subscribes to or has followed, and a client device for operation by the user to receive the content. If a list on the user's device has been modified, the device (e.g., an applet provided by the service) informs a synchronization server by uploading the list. The server synchronizes it with a master list and downloads a copy to the device. A channels list includes an entry for each channel the user follows (and possibly channels he has deleted), which includes an index or ordinal position of the channel among all the user's channels, an identifier of the channel (e.g., a URL), identifiers of sub-lists the channel has been assigned to, and a timestamp identifying the last time the entry changed (e.g., when the channel was added, removed, assigned to a sub-list).

Abstract: A user interface and methods are provided for presenting electronic content on a mobile device with a content-serving application. Heterogeneous content includes ‘internal’ and ‘external’ content. Internal content includes items served by a system hosting the application and/or other items to which the host has full access rights, while external content includes items to which the application host does not have full access rights (e.g., because they are served by a remote site). Placeholders representing content items are browsed using one input, and an item is opened by different input when its placeholder is displayed. External items may not be retrieved until they are opened. Gestures while an external item is open are communicated to its remote site, and when either type of item is fully panned left or right, the item begins to scroll out of view sideways and the placeholder of the next item scrolls into view.

Abstract: A method is provided for maintaining a list of content channels that a user of a multi-channel content service subscribes to or has followed, and a client device for operation by the user to receive the content. If a list on the user's device has been modified, the device (e.g., an applet provided by the service) informs a synchronization server by uploading the list. The server synchronizes it with a master list and downloads a copy to the device. A channels list includes an entry for each channel the user follows (and possibly channels he has deleted), which includes an index or ordinal position of the channel among all the user's channels, an identifier of the channel (e.g., a URL), identifiers of sub-lists the channel has been assigned to, and a timestamp identifying the last time the entry changed (e.g., when the channel was added, removed, assigned to a sub-list).