The Open Access Button is a browser-based tool that lets users track when they are denied access to research, then search for alternative access to the article. Each time a user encounters a paywall, he simply clicks the button in his bookmark bar, fills out an optional dialogue box, and his experience is added to a map alongside other users. Then, the user receives a link to search for free access to the article using resources such as Google Scholar. The Open Access Button initiative hopes to create a worldwide map showing the impact of denied access to research.