Hi
Been handling AWS Solution Architecturing and Cost Optimization for over 3 years now. Been an avid AWS user Since 2009, starting with their SQS offering. Estimating the monthly bill would be trivial and can be assumed to be in a range only. The estimations may be heavily affected by the caching parameters, the expiry header settings and freshness of the content. Consider the facts and get an estimate please accept my bid and provide the detailed specifications as to which size of instances are uses for RDS, EC2. Options as of provisioned iops, multi az, S3 with or without versioning ? Cloud front with global or restricted delivery. Usage frequency of SNS, ie per user per month possiblity of usage. Then for an estimation the total expected data to be stored, and retrived from S3.