VPN = Virtual Private Network. It allows your computer to join a network located elsewhere as if you were physically plugged in to that network. The software is built in to all modern operating systems - all we're doing is configuring it to talk to our servers, which we have tuned to handle the traffic and the bandwidth required to process video. VPN creates a virtual tunnel and verifies that you are allowed to join. When you join our VPN network, all your requests for pages on the Internet appear to come from our network, in the UK (or US); so sites that would normally block your access no longer do so.