1. A method of dynamic, user-directed arrangement and delivery of media, comprising: within a computing environment comprised of at least one computer processor, and at least one computer-readable storage medium operably coupled to the at least one computer processor, the at least one computer processor operable to execute a plurality of program instructions to perform the steps of: receiving 1) one or more media files designated by at least one user, at the direction of the at least one user, or from another user associated with the at least one user, and 2) additional content that includes one or more third-party media files and inferences derived from external data sources associated with the at least one user or an account of the at least one user, into a disparately-maintained content library and an interactive index that are continually updated at least as the one or more media files are designated or as the additional content is received; applying one or more artificial intelligence techniques to adaptively relate the one or more media files and the additional content in the interactive index, by 1) developing a user profile by identifying and continually updating the interactive index from characteristics learned from a) interaction via an interface to collect user-specified media preferences, b) recipient-specified media preferences, and c) inferences obtained from the disparately-maintained content library, and 2) developing a set of content rules for framing a content boundary, the user profile and the set of content rules providing the at least one user with direct control over arrangement and delivery of the one or more media files and the additional content in at least one media stream to one or more devices associated with credentials assigned by the at least one user, and the user profile and the set of content rules are continually updated by the interactive index to dynamically modify the at least one media stream in real time; relating the at least one media stream with one or more of a) a user interaction and a recipient interaction with the at least one media stream, b) additional inferences obtained from the additional content, and c) data obtained from one or more personal computing devices associated with a user or a recipient within a specified proximity of the at least one media stream, to dynamically influence the interactive index and further adaptively relate the one or more media files and the additional content, so that the at least one media stream is further dynamically modified in a real-time response to the one or more of a user interaction and a recipient interaction with the at least one media stream and the characteristics learned, for continued direct control by the at least one user as the at least one media stream is provided and as the one or more media files, the additional content the further media files and further content is received; and delivering the at least one media stream to the one or more devices designated by credentials assigned by the at least one user.