1. A workstation for facilitating interpretation of a medical image by a user, comprising: a display device displaying the medical image to the user; an input device receiving a graphical identification of a location of interest on the medical image from the user; and a processor performing a content-based image comparison of the location of interest against a resource database, said resource database comprising a collection of resource images previously analyzed by human interpreters and textual information associated with said previous analyses, said content-based image comparison comprising identifying a subset of said resource images similar to said location of interest with respect to a preselected set of computed features; wherein said resource database further comprises information categorizing each said resource image therein as being from one of: (i) a first category of medical data source consisting exclusively of preselected, published medical reference texts and medical teaching materials authored by an identified core set of expert authors and commonly recognized as credible and authoritative; and (ii) a second category of medical data source not qualified as being in said first category; and wherein said display device displays to the user at least one of said identified subset of resource images and its associated textual information simultaneously with said location of interest, said display device further displaying information identifying into which of said first and second categories the displayed resource image is categorized.