I will present one way of using an existing platform to share documents, be they books, articles, images, or even sound files. The general idea is to bring together people needing a certain article, book, image or other sort of image, recording or source with others who have access to it. A kind of academic Ebay, maybe? While the browser based app Trello is first and foremost a project management tool, it is flexible enough to serve this purpose. It has several advantages.