The Open Access Button shows you if there are free and legally available copies of articles as you find them – without you having to search them out. The service uses existing repositories and aggregators to locate accessible full-text from your browser and shows the availability, with a link, using a discrete icon on your screen. The Open Access Button also helps you locate open access Data associated with the work you are seeking. This service will not help you browse or search but will tell you if an accessible copy is available once you have found what you are looking for. They also provide a button that you can install on your browser for instant use.