The Open Access Button, a bookmarklet that tracks paywalls to research materials, and offers tools to find free versions of those materials, was just recently released. Check out the official website, and download the button for your browser.
“People are denied access to research hidden behind paywalls every day. This problem is invisible, but it slows innovation, kills curiosity and harms patients. This is an indictment of the current system. Open Access has given us the solution to this problem by allowing everyone to read and re-use research. We created the Open Access Button to track the impact of paywalls and help you get access to the research you need. By using the button you’ll help show the impact of this problem, drive awareness of the issue, and help change the system. Furthermore, the Open Access Button has several ways of helping you get access to the research you need right now.”
Be sure to check out the map to see the breakdown of paywalls across the globe. Hint: zooming in will afford a more granular look at the paywall statistics.