Azure

Compliance: microsoft.com/en-us/TrustCenter/Compliance/default.aspx

Pricing: azure.microsoft.com/en-us/pricing/

Whitepapers: azure.microsoft.com/en-us/resources/

Training and Certification: azure.microsoft.com/en-us/community/training/

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AWS

AWS Architecture Center: https://aws.amazon.com/architecture/

AWS Answers: aws.amazon.com/answers/

AWS Economic Center: aws.amazon.com/economics/

AWS Cloud Security: aws.amazon.com/security/

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Multi-Cloud Deployment Tools

Spinnaker: spinnaker.io/

Terraform: terraform.io/