BioMed Central is a publisher of 206 peer-reviewed open access journals. All original research articles published by BioMed Central are made freely and permanently accessible online immediately upon publication. BioMed Central views open access to research as essential in order to ensure the rapid and efficient communication of research findings. BioMed Central's portfolio of 206 journals includes general titles BMC Biology and BMC Medicine alongside specialist journals (e.g. BMC Bioinformatics, Malaria Journal) that focus on particular disciplines . All the research published by BioMed Central's journals is open access, but BioMed Central also provides access to various additional products and services that require a subscription. For example, certain BioMed Central journals such as Genome Biology publish commissioned review content available only to subscribers. BioMed Central also operates Open Repository, a hosted digital repository solution for institutions. Registration not required.