Amazon Launches 'Elasticsearch Service' (ES) — Elasticsearch is a real-time, distributed search and analytics engine (which effectively acts like a document database too) and Amazon have launched a new service around it.

Rethinking NoSQL: 4.5 Reasons Why RethinkDB Is Worth a Look — RethinkDB is redefining NoSQL, in a good way. In this talk Rob Conery will show you the most compelling features of RethinkDB 2.0, and why it deserves consideration for your next project.

SQLite As An Application File Format — In many cases, SQLite is a better choice than either a custom file format, a pile-of-files, or a wrapped pile-of-files. SQLite is a high-level, stable, reliable, cross-platform, widely-deployed, extensible, performant, accessible, concurrent file format.

Get more from Redis: Autoscaling and Performance Dashboard from RedisGreen — Get insights quickly with our analytics dashboard. Track usage and quickly identify performance bottlenecks. All plans backed by support from engineers who have been scaling Redis for years.

Introducing U-SQL: A Language For Easy Big Data Processing — A language that’s part of Azure Data Lake Analytics that unifies the benefits of SQL with the expressive power of your own code. U-SQL’s scalable distributed query capability enables you to analyze data across relational stores such as Azure SQL Database.

Clarifications About Redis and Memcached — In response to Storing Data with Redis where Mike Perham recommended memcached over Redis for caching, Redis’s creator clarifies why Redis really is a good choice for caching.

Lazy Redis is Better Redis — The creator of Redis shares the complex tale of implementing a non-blocking DEL (delete) command for data stored in a Redis instance.

NoSQL LinkedIn Skills Index for September 2015 — “Once again MongoDB was responsible for more than 50% of all mentions of NoSQL database in LinkedIn member profiles in Q3, placing it way, way ahead of the nearest competitor.”

Modern SQL: The Inaugural Post — Markus Winand, the author of Use The Index, Luke, has launched Modern-SQL.com which has the aim of helping you explore modern SQL (SQL:2011 for now).

The Way to Open Source Hadoop Native SQL — Pivotal has open sourced HAWQ and MADlib, contributing them to the Apache Software Foundation meaning there is now a full featured, SQL standards compliant, interactive SQL engine for Hadoop available in open source.