Open Access means making scientific research publicly available to all on the internet, free of charge and without restriction. Open Access allows anybody to read, download, copy, distribute, print, search, and cite full versions of texts without financial or technical barriers (other than those associated with access to the internet), and furthermore to use such texts in any other conceivable legal manner.

The Directory of Open Access Journals is a database containing all open access journals (today ca. 2,700) whereof about 800 are searchable on article level.