Open Access Button

• https://chrome.google.com/webstore/detail/open-access-button/gknkbkaapnhpmkcgkmdekdffgcddoiel
• https://addons.mozilla.org/en-US/firefox/addon/openaccessbutton/
• javascript:document.getElementsByTagName('body')[0].appendChild(document.createElement('script')).setAttribute('src','https://openaccessbutton.org/static/bookmarklet/includer.js?r='+Math.random());
• https://github.com/oabutton
• https://twitter.com/OA_Button