1. A method for making an inferential network of electronic databases, the method comprising the steps of: storing electronic search data comprising a record of search terms used in searches of collections of linked databases and electronic databases returned from the searches; creating an inferential link between a first inferential-network node and a second inferential-network node, wherein the inferential link is created as a function of the electronic search data; wherein the inferential network is created by storing one or more inferential links between inferential-network nodes.