Nature Publishing Group has announced that it will make Nature and 48 other journals freely available in a read-only format. Subscribers will be able to share an article through a read-only link. Users of that link will be able to view the articles in a web browser but will not be able to copy/paste, download, or print. The software used to manage this read-only format is called ReadCube.
More information about this announcement is available on nature.com.
