Abstract: A media sharing system is able to deliver media content, including video, audio, photographs and graphics, to a wide variety of devices, using a file format appropriate to the delivery device and using a delivery method appropriate to the delivery device.

Abstract: A source file representing media such as video, photographs or graphics, is uploaded and stored. During a pre-transcoding process, the source file is converted to a predetermined number of different formats, and the converted files are stored. When the source file is requested, the best file format for the requesting device is determined. If the best file format is one of the pre-transcoded formats, a pre-transcoded file is provided to fulfill the request. If the best file format is not one of the pre-transcoded formats, then the source file is transcoded to generate an on-demand transcoded file in the best file format and the on-demand transcoded file is provided to fulfill the request.

Abstract: A media sharing system accommodates passively registered users, who receive information from the system but do not provide content media to the system, and actively registered users, who provide content to the system and then share it with others. The system collects and stores information about a user as the information is needed to accomplish a function, shielding the user from burdensome data entry.

Abstract: A user is able to subscribe to an object by sending a mobile message or through a website. The object can be a file or a channel. The subscription message can use hierarchical mobile keywords. The user can adjust their registration information to control how much information is received from the subscription, when, and to what device the subscription is delivered.

Abstract: A page to be delivered to a user device is stored as page components. Based on characteristics of the user device, a page profile, an ad-banner profile and a thumbnail profile are selected. The page components are rendered based on the selected profiles. Further customization may be provided from information stored in a registration profile of a sending user and/or a registration profile of a receiving user.

Abstract: A page to be delivered to a user device is stored as page components. Based on characteristics of the user device, a page profile, an ad-banner profile and a thumbnail profile are selected. The page components are rendered based on the selected profiles. Further customization may be provided from information stored in a registration profile of a sending user and/or a registration profile of a receiving user.

Abstract: A media sharing system accommodates passively registered users, who receive information from the system but do not provide content media to the system, and actively registered users, who provide content to the system and then share it with others. The system collects and stores information about a user as the information is needed to accomplish a function, shielding the user from burdensome data entry.

Abstract: A user is able to subscribe to an object by sending a mobile message or through a website. The object can be a file or a channel. The subscription message can use hierarchical mobile keywords. The user can adjust their registration information to control how much information is received from the subscription, when, and to what device the subscription is delivered.

Abstract: A media sharing system is able to deliver media content, including video, audio, photographs and graphics, to a wide variety of devices, using a file format appropriate to the delivery device and using a delivery method appropriate to the delivery device.

Abstract: A source file representing media such as video, photographs or graphics, is uploaded and stored. During a pre-transcoding process, the source file is converted to a predetermined number of different formats, and the converted files are stored. When the source file is requested, the best file format for the requesting device is determined. If the best file format is one of the pre-transcoded formats, a pre-transcoded file is provided to fulfill the request. If the best file format is not one of the pre-transcoded formats, then the source file is transcoded to generate an on-demand transcoded file in the best file format and the on-demand transcoded file is provided to fulfill the request.