It might sound scary, but the ‘dark web’ is not much different from the rest of the internet. Despite the sinister-sounding phrase, there is not just one “dark web.” The term is actually fairly technical in origin, and is often used to describe some of the lesser-known corners of the internet. People often think of the dark web as a place where people sell drugs or exchange stolen information—or as some rare section of the internet Google can’t crawl. It’s both, and neither, and much more.
Full article: Illuminating the Dark Web – Scientific American