1. A method for managing a networked secure collaborative computer data exchange environment, the method comprising: establishing, by a secure exchange server managed by an intermediate business entity, a user login data authentication procedure that allows a user through at least one client computing device to access the secure exchange server, wherein the user is one of a plurality of users of a plurality of other business entities and communications between the secure exchange server and the plurality of users is through a communications network; storing, by the secure exchange server, at least one user login authentication data for at least one of the plurality of users; receiving a computer data content from a first of the plurality of users, wherein the first of the plurality of users permits a sharing access to the computer data content to at least a second of the plurality of users, and wherein management for access to the computer data content is through an exchange content access facility managed by the intermediate business entity; granting, by the secure exchange server, sharing access to the computer data content to the at least second of the plurality of users when the secure exchange server receives from the second of the plurality of users its client login authentication data provided that the second of the plurality of users is one of the subset of the plurality of users to which sharing access is permitted; receiving a request from the at least second of the plurality of users to access a copy of the computer data content; granting, by the secure exchange server, the copy access request to the at least second of the plurality of users, wherein a copy of the computer data content is made; receiving from the first of the plurality of users a request to revoke sharing access to the computer data content to the at least second of the plurality of users; revoking, by the secure exchange server, sharing access to the computer data content to the at least second of the plurality of users; and deleting access, by the secure exchange server, to the copy of the computer data content made by the at least second of the plurality of users.