- COBRA Collection of Biostatistics Research Archive Preprints, working papers, some peer reviewed journal articles
- Nature Precedings
- Full text, 2011+; freely avaialble; not really a journal but a permanent, citable archive for pre-publication research and preliminary findings. The archive allows for researchers to share documents, including presentations, posters, white papers, technical papers, supplementary findings, and non-peer-reviewed manuscripts.

