Should I use a VPN app or a VPN extension?.Can I unblock Netflix or BBC iPlayer with a VPN?.What to look after when choosing a VPN?.Is the VPN related to proxy or SmartDNS?.What types of VPN exist, and what are your options?.Keep in mind that a VPN has its limitations too!.Why do I need a VPN, and what does a VPN do?.What is the definition of a VPN, and what is it all about with this technology?.