ArangoDB: Polyglot Persistence Without Cost — An open source NoSQL database that provides flexible data model. You can use ArangoDB to model data using combination of document, graph, and key value data modeling styles.

A Free Data Generation Tool for Creating Test Data — Specify columns, data types, numbers of rows required, and get back a file in any of several formats (CSV, SQL, JSON, etc.)

MUMPS: The Most Important Database You (Probably) Never Heard Of — A quick look at a database that was first released 50 years ago but was ACID compliant and included many functions modern NoSQL systems do.

Unlimited Scalability & Unprecedented Speed with the GridGain In-Memory Data Fabric — GridGain enables high-performance transactions, real-time streaming and fast analytics using a distributed, massively parallel architecture which can connect SQL, NoSQL, and Hadoop databases. GridGain is an enterprise-ready solution built on Apache Ignite™.

Managing Data Storage with Blockchain and BigchainDB — Chris Ward looks at BigchainDB and how it uses the Blockchain in a new and innovative way — for data storage.

Chronicle Map: Replicate Your Key Value Store Across Your Network — An in-memory key-value store designed for low-latency and/or multi-process applications. Notably trading, financial market applications.

Getting Started with Graph Databases — A brief overview of RDBMS architecture in comparison to graph-based, basic graph terminology, and real-world use cases for graph databases.

Academic Paper on ZeroDB, a Fully Encrypted Database System — ZeroDB is an end-to-end encrypted database that enables clients to operate on encrypted data without exposing encryption keys or cleartext data to the database server.