This document provides a summary of the BigData ecosystem. It lists various distributed filesystems, NoSQL databases, data models, distributed programming frameworks, data ingestion tools, scheduling tools, system development tools, service programming tools, and machine learning tools that are part of the BigData ecosystem. It also defines the size of bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes, and exabytes. Some related links on open data, NoSQL databases, traditional databases vs NoSQL, and the role of SQL in big data are also included.