1. A method for managing a networked secure collaborative computer data exchange environment, the method comprising: establishing, by a secure exchange server controlled by an intermediate business entity, a client login data authentication procedure that allows at least one client computing device of a plurality of client computing devices operated by users of a plurality of business entities to access the secure exchange server, wherein communications between the secure exchange server and the plurality of client computing devices is through a communications network; storing, by the secure exchange server, at least one client login authentication data for each of the plurality of client computing devices; receiving content from a first of the plurality of client computing devices operated by a user of a first business entity of the plurality of business entities; by the secure exchange server, permitting access to the received content for a subset of the plurality of client computing devices through an exchange content access facility, wherein the exchange content access facility is managed by at least one business entity of the plurality of business entities; granting, by the secure exchange server, access to the received content to a second of the plurality of client computing devices operated by a user of a second business entity of the plurality of business entities when the secure exchange server receives from the second of the plurality of client computing devices its client login authentication data provided that the second of the plurality of client computing devices is one of the subset of the plurality of client computing devices; and providing an exchange community facility where each of a plurality of users operating the plurality of client computing devices is enabled to establish a corresponding informational profile that is made accessible to other users operating the plurality of client computing devices and is enabled to find and interact with the other users based on the informational profile.