Shades of Grey Literature is an invitation to discover, play and worry about the numerous documents, commentaries and traces which organise electronic communication in the background. A mass of anonymous documents (licenses, conditions, specifications, guidelines and standards) secures the uninterrupted flow of information. Ubiquitous Grey literature radiates out from the margins and regulates the relationship between machines and humans. As it frames the way humans relate through networks too, who has the right to see, read, write or execute?