Perma.cc is a service, currently in beta, that allows users to create citation links that will never break. When a user creates a Perma.cc link, Perma.cc archives a copy of the referenced content, and generates a link to an unalterable hosted instance of the site. Regardless of what may happen to the original source, if the link is later published by a journal using the Perma.cc service, the archived version will always be available through the Perma.cc link. http://bit.ly/19MbtdE