9. A system for document retrieval in a network environment where documents are stored with corresponding privacy codes, comprising: a query server computer in communication with the network, the query server computer configured to receive a query including a keyword and an access code identifier from a requester and generate a second index of words in the privacy index from documents having access codes corresponding to the access code identifier; and generate a privacy index of all documents available on the network indexed by their corresponding privacy codes, the privacy codes defining permitted conditions of document access that are securely associated with the documents according to the control of at least one document custodian for each document.
9. A system for document retrieval in a network environment where documents are stored with corresponding privacy codes, comprising: a query server computer in communication with the network, the query server computer configured to receive a query including a keyword and an access code identifier from a requester and generate a second index of words in the privacy index from documents having access codes corresponding to the access code identifier; and generate a privacy index of all documents available on the network indexed by their corresponding privacy codes, the privacy codes defining permitted conditions of document access that are securely associated with the documents according to the control of at least one document custodian for each document. 10. The system according to claim 9 , comprising: a search engine in communication with the network and configured to: receive a query from a requester; and generate a list of documents from said privacy index which match search parameters of the query and privacy codes of the requester.