Abstract: Methods and system for increasing the operational efficiency of a server while protecting user privacy. One method includes defining a universal reference file to use in response to queries, transmitting sufficient information to generate a first response file following receipt of a query from a user and responding to a second query from the same user by transmitting a current differences file. An additional method includes defining an initial reference file, comparing a response to a query to the initial reference file, deleting content which is not common to the current response and the initial reference file to generate an updated reference file containing less user specific information, transmitting sufficient information to generate the updated reference file and a response to a current query to a specific user and responding to a second query from the same user by supplying a differences file so that a second response file may be generated.

Abstract: A method and system for accelerating receipt of data in a client to client network. The method includes the steps of intercepting queries and responses, storing the intercepted queries and responses in an acceleration server and transmitting the intercepted responses to clients submitting intercepted queries. The system includes at least one acceleration server designed and configured to perform the steps included in the method.

Abstract: A packet retransmission eliminator is installed on opposite ends of a path in a network. Each original packet sent over the path is cached on the transmitting and the receiving ends of the path. Retransmitted packets that are to be sent over the path are intercepted and replaced with a substitute retransmission packet. In response to a received retransmission packet, the receiving end retransmits the original packet using the corresponding packet that was previously stored in the cache.