Full-Text Article Access

The Open Access Button is a very similar extension to the UnPayWall extension.

1. The extension adds a button to your browser’s toolbar, and you need to click it when you want to check for an OA version of an article. In this way, the Open Access Button is slightly less convenient than Unpaywall — you have to make the (extremely small!) effort to click the button.
2. The Open Access Button’s data sources include the Unpaywall database but also numerous others. This means that the Open Access Button is more likely to connect you to an OA version of the article you seek.
3. If the Open Access Button can’t find a legal OA version of an article you want, it can send a request to the article’s author. It makes sending an email to the author quicker and easier than it would otherwise be, and gives the author easy-to-follow instructions for how to proceed in making the article OA. In other words, it lowers the barrier to act for both the researcher and the author!

When the Open Access Button cannot locate an OA version of an article, it presents the researcher with the option to initiate a request.

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