There are special websites accessible on the internet that formulate the principles of assessing Open Access sources and analyse the credibility of different Open Access publications.
- DOAJ https://doaj.org/ is an online directory that indexes and provides access to quality open access, peer-reviewed journals.
- Being a member of Open Acces Scholarly Publishers Association (OASPA) oaspa.org adds credibility to the publisher.
- PhD on Track http://www.phdontrack.net/share-and-publish/open-access/ provides an overview of the opportunities, benefits, and challenges of publishing articles in Open Access.
- Simple criteria for evaluating OA journals http://www.gvsu.edu/library/sc/open-access-journal-quality-indicators-2.htm
The catalogue of Open Access journals http://www.doaj.org/ contains more than 13800 titles, including a number of high impact factor journals indexed by the Web of Science. The number of OA journals and the percentage of article citations are growing.
The directory is divided into subjects, lists of journals open under each subject area. Articles can be found by browsing the contents of the issues. About 80% all journals are searchable - articles can also be found by using the search window 'Articles'. Articles of Open Access journals can more reliably be found by using the Google Scholar search.