The phrase identifies the activity of seeking and acquiring textual resources concerning the study of demons, spirits, and related supernatural entities, specifically in a digital format and without monetary cost. An example of this activity would be using a search engine to locate and obtain a Portable Document Format (PDF) file containing the text of a classic grimoire.
Accessing this category of literature can provide insights into historical beliefs, cultural anxieties, and the evolution of folklore surrounding malevolent or ambiguous supernatural figures. The availability of these texts in a freely accessible digital format removes barriers to entry for researchers, students, and individuals with a general interest in the subject matter. This widespread accessibility facilitates broader scholarship and a deeper understanding of the historical context surrounding demonological beliefs.