Abstract: A system for distributing content to at least one client device is disclosed. A content host has a processor and a content store, a client device has a processor and a content cache and a permissions store has a computer storage device configured to store permissions data corresponding to a recipient of content. The content host processor is configured to receive a content identifier corresponding to a recipient request for permission to cache an item of content. The content host processor will then parse the permissions data to determine if the recipient has available permissions to cache the requested content. If the user has available permissions, the content host processor modifies the permissions data to include permission to cache the content. The recipient may additionally request for permission to cache a given item of content to be removed in order to increase an amount of permissions available to the recipient.

Abstract: Methods and systems for providing items of content over a peer-to-peer system are described. Items of content are requested from a central server by a downloading peer, and the central server determines uploading peers from whom the downloading peer may request parts of the content item.

Abstract: Methods and systems for providing items of content over a peer-to-peer system are described. Items of content are requested from a central server by a downloading peer, and the central server determines uploading peers from whom the downloading loading peer may request parts of the content item.