This post was originally posted at http://blogs.plos.org/speakingofmedicine/2013/10/22/oa-button-launch-if-someone-hits-a-paywall-in-the-forest-does-it-make-a-sound/ . Thanks to PLOS for publishing. Co-leads of the Open Access Button Project, David Carroll and Joseph McArthur announce the launch of the Open Access Button. 18th November 2013. 10 years ago today.