Research Square is a multidisciplinary preprint platform. You can submit directly to the platform or opt in to In Review, a free preprint service, when you submit to a participating journal.
Protocol Exchange is an open repository of community-contributed protocols sponsored by Nature Portfolio.
In Review is a free preprint service that lets you post your paper online and track its status during peer review. Opt in when you submit to participating journals and receive real-time updates on your manuscript.