Abstract: Described herein are systems, methods, and apparatus for initiating one or more actions based at least in part on an audio output device. Upon connection of an audio output device such as headphones one or more actions may be configured to occur. These actions may include playing at least a portion of an audio content, presenting information on a display, and so forth.

Abstract: Systems and methods are provided for generating user format preference data and using that data to select and/or deliver a specific format of a work. For example, a dynamic format delivery service can dynamically collect data representing a user's preferences respecting specific contexts and formats, and can store this data in association with the user. The dynamic format delivery service can then make use of that data to dynamically select a format for a requested work in order to provide the user with a format tailored to that specific user's consumption habits. Moreover, data representing preferences of a population of users, context attributes, or device-specific format preferences may further contribute to selecting a work format.

Abstract: Described herein are systems, methods, and apparatus for initiating one or more actions based at least in part on an audio output device. Upon connection of an audio output device such as headphones one or more actions may be configured to occur. These actions may include playing at least a portion of an audio content, presenting information on a display, and so forth.

Abstract: Methods and apparatuses for time-based access to digital content are provided. Access to a set of digital content is provided for a predetermined period of time. During the predetermined period of time, a user can access (e.g., download, play) any digital content in the set of digital content. At the end of the predetermined period of time, the user is denied access to the digital content regardless of where the content is stored (e.g., in a digital content library, on a computer system controlled by the user, on a playback device controlled by the user). Simplified access and control of digital content is thereby provided in the form of time-based access.

Abstract: Methods and apparatuses for time-based access to digital content are provided. Access to a set of digital content is provided for a predetermined period of time. During the predetermined period of time, a user can access (e.g., download, play) any digital content in the set of digital content. At the end of the predetermined period of time, the user is denied access to the digital content regardless of where the content is stored (e.g., in a digital content library, on a computer system controlled by the user, on a playback device controlled by the user). Simplified access and control of digital content is thereby provided in the form of time-based access.

Abstract: Methods and apparatuses for time-based access to digital content are provided. Access to a set of digital content is provided for a predetermined period of time. During the predetermined period of time, a user can access (e.g., download, play) any digital content in the set of digital content. At the end of the predetermined period of time, the user is denied access to the digital content regardless of where the content is stored (e.g., in a digital content library, on a computer system controlled by the user, on a playback device controlled by the user). Simplified access and control of digital content is thereby provided in the form of time-based access.