The deep net. wiki defines it as "The Deep Web, Deep Net,[1] Invisible Web,[2] or Hidden Web[3] are search terms referring to the content on the World Wide Web that is not indexed by standard search engines. Computer scientist Mike Bergman is credited with coining the term in 2000.[4]"

its full of malware and CP, but people still go there unprotected, which led to a lot of creepy pasta. all of them sounding very similar....