According to the site's "Who We Are" section, they'll accept anonymously submitted "restricted or censored material of political, ethical, diplomatic or historical significance which is in some way connected to higher education, an agency or government body working in partnership with an institution, e.g., a university." That means they want those private emails between professors, copies of shady contracts, secret research, and internal memos. Whistle-blowers can upload their documents through an encryption-free electronic drop box. The site's journalists then turn them into news stories.