If you're a scholar interested in reading full-text articles about science, technology, history, business, law, humanities, or social science, you're in luck. There are many online services that will deliver to you full-text articles as you browse through the web. But most of these services only allow you to read a limited number of articles per day, so you'll have to continuously log in to stay on top of things.

That's not the case with Unpaywall. When you visit a scholarly article page, you'll see a green tab that indicates whether you can read the full-text version of the article. Click on the green tab to get the full-text version of the article. You can continue to read the article without logging in.

Unpaywall makes it simple to read scholarly articles as you browse the web, without having to log in every time.