The document discusses open access and how it provides free availability of scholarly articles online. It defines open access based on the Budapest Declaration. It describes the different routes to open access publishing, including green open access through self-archiving and repositories, golden open access through open access journals, and hybrid open access through traditional journals that offer some open access options. It provides examples of open access policies and initiatives at institutions like the Max Planck Society and the role of libraries in supporting open access through services like research registration and open access websites.
Related topics: