There are many discipline-specific as well as multi-disciplinary open access journals. To choose journals for publication see "Vetting OA Journals" in this guide for more information
BioMed Central : BioMed Central Ltd. is an independent publisher in London, England, that provides free access to biomedical research publications. These publications include biology and medicine journal articles, current reports, and meeting abstracts. BioMed Central also offers information about current controlled trials, as well as topics in modern biology. (Gold OA)
MLA Commons: A site that supports a wide range of informal blogs and discussion groups and a platform for more formal publications—both member-generated and those initiated by the association.. (See also "Developing New Book Projects on MLA Commons.") (Green OA)
Sage Open: A peer-reviewed, "Gold" open access journal from SAGE that publishes original research and review articles in an open access format. Coverage includes the social and behavioral sciences and the humanities. (Gold OA)