Viewers of presentations of entertainment, news, education and other the like, often observe unadvertised products of interest therein. However, in order to avoid degrading the artistic or objective integrity, producers and distributors of such presentations, do not provide sufficient product description information to permit the viewer to identify and/or purchase the product. The present invention describes methods and systems for permitting such users to research and/or purchase products observed to be involved in presentations by accessing presentation appearance data, product description data, and issuance data prepared, stored and associated in a non-transitory computer-readable database.