File:Wat is Tor (The onion routing)?.png - Wikimedia Commons
PORTAL Router Project Offers Pocket Sized TOR Privacy
Statistical and combinatorial analysis of the TOR routing protocol: structural weaknesses identified in the TOR network | SpringerLink
Tor router on Raspberry Pi
Overview | Onion Pi | Adafruit Learning System
Tor security: Everything you need to know about the anonymity network | The Daily Swig
Europol - Tor (The Onion Router) is a free network designed to anonymise real Internet Protocol (IP) addresses by routing traffic through many servers of the Tor network. Tor is used by
TOR: The Onion Router (in Society > Privacy > Remailers @ iusmentis.com)
THOR: Travel friendly Tor Hardware Router Plug & Play Open Source 852169006023 | eBay