Abstract: Described is a mechanism for providing a single file that includes multiple representations of the same document content. Each of the representations may be optimized to provide a superior presentation for a particular device or application. The mechanism of the invention is preferably based on a compound file format that allows multiple renditions of the same content to be stored in a single document. Meta information is included within the single document that describes each of the multiple renditions together with any supporting files that may be used with those renditions. The inventors have determined that the Object Linking and Embedding (OLE) compound file format is especially well suited to implementations of the invention.

Abstract: Described is a mechanism for providing a single file that includes multiple representations of the same document content. Each of the representations may be optimized to provide a superior presentation for a particular device or application. The mechanism of the invention is preferably based on a compound file format that allows multiple renditions of the same content to be stored in a single document. Meta information is included within the single document that describes each of the multiple renditions together with any supporting files that may be used with those renditions. The inventors have determined that the Object Linking and Embedding (OLE) compound file format is especially well suited to implementations of the invention.

Abstract: Various systems and methods allow advertising content in products to be more flexible and dynamic. One feature allows the product purchaser to control the amount or type of advertising he or she receives along with a product. By paying a higher, premium fee, the user may receive a version of the product that contains little or no advertisement. However, if the user would like to receive advertisements with the product, a less expensive version is available that additionally includes advertisement content. Another feature of the invention allows advertisers to bid for advertisement slots provided in product packages. The products and advertisements may be structured so that the advertiser may freely change or manipulate the advertisements at any time.