Abstract: A method to provide additional media objects for data objects containing one or more existing media objects is described. The existing media object is analyzed to determine additional related media available on the network, and the data object description is augmented with metadata to identify the additional media in an enhanced data object description. When the enhanced data object is rendered, the metadata facilitates incorporation of additional media objects in the displayed page.

Abstract: A method to provide additional media objects for two or more users intercommunicating over a network is described. The intercommunication messages are analyzed to determine additional related media objects available on the network, and one or more best related media objects are transmitted to the intercommunicating users. The additional media objects are rendered within the context of the network intercommunication.

Abstract: A real-time locater for digital media objects, related to one or more creative compositions and accessible over a network, is described. A service-provider maintains a master index of the digital media objects. The master index is organized by considering each media object to be an example of a primary attribute associated with the media object by a multitude of users. The reference is constructed as a data structure of primary attributes and means of locating the media objects as instances of primary attributes. Each such media object may be further categorized by associating it with one or more secondary attributes. The data structure is augmented to provide for efficient location of media objects by relating secondary attributes.

Abstract: A real-time locater for digital media objects, related to one or more musical compositions and accessible over a network, is described. A service-provider maintains a master index of the digital media objects and a playlist-resolver server. The master index is organized by considering each media object to be an example of a primary attribute associated with the media object by a multitude of users. The reference is constructed as a data structure of primary attributes and means of locating the media objects as instances of primary attributes. The playlist-resolver works with the master index to translate a list of references to creative works into a series of successful accesses to the corresponding media object files.

Abstract: An online music system includes a music database configured to store musical selections and to store a user profile for respective users of the online music system, an advertiser account management system to store bid amounts from advertisers seeking to provide information to the users of the online music system and a user recommendation system coupled to the music database to present information about musical selections to respective users based on the stored user profile and the stored bid amounts.