Patent ID: 7185092

Claim:
A system established in a communication network comprising: a data manager, for storing restricted information for a first set of subscribers, partial restricted information for a second set of subscribers, and metadata describing the restricted information for non-subscribers and search engine robots; a transmission source determiner, for receiving an access request to the data manager from a transmission source, and for determining whether the transmission source is one of the first set of subscribers, the second set of subscribers, a non-subscriber, or a search engine robot; and a response unit, for if the transmission source determiner determines that the transmission source is a member of the first set of subscribers, transmitting said restricted information to the transmission source through the communication network, if the transmission source determiner determines that the transmission source is a member of the second set of subscribers, transmitting said partial restricted information to the transmission source through the communication network, and if the transmission source determiner determines that the user is one of the non-subscribers or search engine robots, transmitting said metadata to the transmission source through the communication network; wherein the first set of subscribers has full unrestricted access to an information site; wherein the second set of subscribers has partially restricted access to the information site; and wherein the metadata comprises an automatically generated statement describing the subject matter and type of the restricted information, a keyword indicative of the content of the restricted information for preparing a search engine keyword index, and subscription information describing how to join at least one of the first set of subscribers or the second set of subscribers.