Organizations and individual publications that are members of OASPA have undergone a thorough application review process and adhere to OASPA's Code of Conduct.
Members (publications and/or editors or publications) of COPE have demonstated that they adhere to "principles of transparency and best practice for scholarly publications."
Think. Check. Submit. is a campaign to help researchers identify trusted journals for their research. It is a simple checklist researchers can use to assess the credentials of a journal or publisher.
SPARC is a global coalition committed to making Open the default for research and education. This link takes you helpful information about publisher copyright agreements.
SHERPA RoMEO is an online resource that aggregates and analyses publisher open access policies from around the world and provides summaries of self-archiving permissions and conditions of rights given to authors on a journal-by-journal basis.