Open Access (OA) refers to the free and open availability of scholarly content on the Internet, allowing anyone to view, download and use that information with no access fees. Open-access materials can include journal articles, theses, book chapters, conference proceedings, scholarly monographs, and more. There are many freely available engineering-related resources located on the web, so if you're not finding what you need in the library databases, check out some of these open-access resources.