Amazon added a new feature called Virtual Private Cloud to their Web Services.
Amazon Virtual Private Cloud (Amazon VPC) is a secure and seamless bridge between a company’s existing IT infrastructure and the AWScloud. Amazon VPC enables enterprises to connect their existing infrastructure to a set of isolated AWS compute resources via a Virtual Private Network (VPN) connection, and to extend their existing management capabilities such as security services, firewalls, and intrusion detection systems to include their AWS resources. Amazon VPCintegrates today with Amazon EC2, and will integrate with other AWSservices in the future. As with all Amazon Web Services, there are no long-term contracts, minimum spend or up-front investments required. With Amazon VPC, you pay only for the resources you use.
If you are interested in this product you can check out its features and sign-up for the service via this page: