- https://www.torproject.org/about/overview.html.en#inception
- https://trac.torproject.org/projects/tor/wiki/doc/TorPlusVPN
- http://www.slashgeek.net/2012/06/15/how-to-be-completely-anonymous-online/
- http://tor.hermetix.org/hidden-services.html.it
- http://www.onion-router.net/
- https://www.torproject.org/about/overview.html.en
- http://tor.hermetix.org/docs/tor-hidden-service.html.it