RefShare is a module in RefWorks that allows users to share folders or their entire RefWorks database. Users can share by going to the Folders or Tools menu and selecting Share Folders or Share References. This brings users to the Shared Folder Options page where they can customize permissions, such as allowing printing or commenting. Users provide a URL or email link to share their folder and can choose formatting options for viewers. RefShare allows collaborative research by enabling sharing, commenting, and accessing references and files.