AWS VPCs and CIDR blocks (possibly more than you've ever wanted to know about IP addresses, networks, subnet masks and all that stuff) – Kev's Development Toolbox
AWS Virtual Private Cloud
One to Many: Evolving VPC Design | AWS Architecture Blog
New – VPC Ingress Routing – Simplifying Integration of Third-Party Appliances | AWS News Blog
Creating VPCs and Subnets across Regions with a Single CloudFormation File — CloudAvail
Virtual Private Cloud (VPC) Explained – Welcome to Irfan Website