Abstract: Personalized messages can be generated according to contents detected in communications between parties to a commercial transaction. The information streams between parties is monitored; spoken keywords, images, video or textual data are detected by pattern recognition, voice recognition or text matching. One or more subjects of the communication detected from recognized keywords, images, video or text data are used to generate a personalized message to one or more participants according to the detected subjects.

Abstract: A method of managing data files in a file caching server provides access to a plurality of stored data files. The method is to receive a request for a file, which is identified by a cryptographically secure checksum. The availability of the file is determined using the cryptographically secure checksum and, if said file is available, retrieving the file. If the file is not available to said file caching server, then a file request is issued to, and the file is retrieved from another file server where the file with the cryptographically secure checksum exists.

Abstract: A method of managing data files in a file caching server provides access to a plurality of stored data files. The method is to receive a request for a file, which is identified by a cryptographically secure checksum. The availability of the file is determined using the cryptographically secure checksum and, if said file is available, retrieving the file. If the file is not available to said file caching server, then a file request is issued to, and the file is retrieved from another file server where the file with the cryptographically secure checksum exists.

Abstract: Personalized messages can be generated according to contents detected in communications between parties to a commercial transaction. The information streams between parties is monitored; spoken keywords, images, video or textual data are detected by pattern recognition, voice recognition or text matching. One or more subjects of the communication detected from recognized keywords, images, video or text data are used to generate a personalized message to one or more participants according to the detected subjects.

Abstract: A method of managing a print job of a user for a print provider includes registering the print provider with a print provider proxy, receiving the print job of the user at the print provider proxy for the print provider, and transferring the print job from the print provider proxy to the print provider when requested by the print provider.