This document summarizes an AWS brown bag session that covered DynamoDB, SQS, and S3. DynamoDB is a NoSQL database service that offers fast performance using SSD storage. SQS is a message queuing service that allows decoupling application components. S3 is AWS's object storage service that provides unlimited storage and high durability for files and objects. The session discussed key features and concepts for each service including throughput models, data models, consistency models, and storage tiers.