• Elasticsearch official website
• Logstash is a data pipeline that helps you process logs and other event data from a variety of systems
• Kibana is a data analysis tool that helps to visualize your data

• Yelp/elastalert is a modular flexible rules based alerting system written in Python
• exceptionless/Exceptionless is an error (exceptions) collecting and reporting server with client bindings for a various programming languages
• searchkit/searchkit is a UI framework based on React to build awesome search experiences with Elasticsearch

• Sense (from Elastic) A JSON aware developer console to ElasticSearch; official and very powerful
• Sense (Google Chrome extension) A JSON aware developer console to ElasticSearch; unofficial but very powerful
• ES-mode An Emacs major mode for interacting with Elasticsearch (similar to Sense)
• Elasticsearch Cheatsheet Examples for the most used queries, API and settings for all major version of Elasticsearch

• Knapsack plugin is an "swiss knife" export/import plugin for Elasticsearch
• Elasticsearch-Exporter is a command line script to import/export data from ElasticSearch to various other storage systems
• esbulk Parallel elasticsearch bulk indexing utility for the command line.
• elasticdump - tools for moving and saving indicies

• sscarduzio/elasticsearch-readonlyrest-plugin Safely expose Elasticsearch REST API directly to the public
• mobz/elasticsearch-head is a powerful and essential plugin for managing your cluster, indices and mapping
• Bigdesk - Live charts and statistics for elasticsearch cluster
• Elastic HQ - Elasticsearch cluster management console with live monitoring and beautiful UI
• Kopf - Another management plugin that have REST console and manual shard allocation
• Search Guard - Elasticsearch security for free

• SIREn Join Plugin for Elasticsearch This plugin extends Elasticsearch with new search actions and a filter query parser that enables to perform a "Filter Join" between two set of documents (in the same index or in different indexes).

• NLPchina/elasticsearch-sql - Query elasticsearch using familiar SQL syntax. You can also use ES functions in SQL.
• elastic/elasticsearch-hadoop - Elasticsearch real-time search and analytics natively integrated with Hadoop (and Hive)
• jprante/elasticsearch-jdbc - JDBC importer for Elasticsearch

• jprante/elasticsearch-plugin-bundle A plugin that consists of a compilation of useful Elasticsearch plugins related to indexing and searching documents

• elastic/timelion time-series analyses application. Overview and installation guide: Timelion: The time series composer for Kibana

• /r/elasticsearch
• Elasticsearch forum
• Stackoverflow
• Books on Amazon does not fit well into this category, but worth to check this out!
• TODO: Put some good twitter accounts

• Centralized Logging with Logstash and Kibana On Ubuntu 14.04 everything you need to now when you are creating your first Elasticsearch+Logstash+Kibana instance
• dwyl/learn-elasticsearch a getting started tutorial with a pack of valuable references
• Make Sense of your Logs: From Zero to Hero in less than an Hour! by Britta Weber demonstrates how you can build Elasticsearch + Logstash + Kibana stack to collect and discover your data

• A Useful Elasticsearch Cheat Sheet in Times of Trouble
• The definitive guide for Elasticsearch on Windows Azure
• ElasticSearch pre-flight checklist
• 9 Tips on ElasticSearch Configuration for High Performance
• Docker – Using Compose to scale up elasticsearch cluster

• Maximizing Data Ingestion Performance with Elasticsearch on Azure - and not only for Azure. That's a great article about Elasticsearch Performance testing by example
• Elasticsearch Indexing Performance Cheatsheet - when you plan to index large amounts of data in Elasticsearch (by Patrick Peschlow)
• ElasticSearch for Logging Elasticsearch configuration tips and tricks from Sanity
• Scaling Elasticsearch to Hundreds of Developers by Joseph Lynch @yelp
• 10 Elasticsearch metrics to watch
• Understanding ElasticSearch Performance
• Our Experience of Creating Large Scale Log Search System Using ElasticSearch - topology, separate master, data and search balancers nodes
• 📂 Elasticsearch on Azure Guidance it is 10% on Azure and 90% of a very valuable general information, tips and tricks about Elasticsearch
• How to avoid the split-brain problem in Elasticsearch

• Apache Hive integration
• Connecting Tableau to ElasticSearch (READ: How to query ElasticSearch with Hive SQL and Hadoop)
• mradamlacey/elasticsearch-tableau-connector

• ElastAlert: Alerting At Scale With Elasticsearch, Part 1 by engineeringblog.yelp.com
• ElastAlert: Alerting At Scale With Elasticsearch, Part 2 by engineeringblog.yelp.com
• Elastalert: implementing rich monitoring with Elasticsearch

• Elasticsearch as a Time Series Data Store by Felix Barnsteiner
• Running derivatives on Voyager velocity data By Colin Goodheart-Smithe
• Shewhart Control Charts via Moving Averages: Part 1 - Part 2 by Zachary Tong
• Implementing a Statistical Anomaly Detector: Part 1 - Part 2 - Part 3 by Zachary Tong

• Classifying images into Elasticsearch with DeepDetect (forum thread with discussion) by Emmanuel Benazera
• Elasticsearch with Machine Learning (English translation) by Kunihiko Kido
• Recommender System with Mahout and Elasticsearch

• Data Infrastructure at IFTTT Elasticsearch, Kafka, Apache Spark, Redhsift, other AWS services
• OFAC compliance with ElasticSearch using AWS
• Building a Streaming Search Platform - Streaming Search on Tweets: Storm, Elasticsearch, and Redis

• LogZoom, a fast and lightweight substitute for Logstash
• Graylog2/graylog2-server - Free and open source log management (based on ES)
• Fluentd vs. Logstash for OpenStack Log Management
• Building a Directory Map With ELK
• Structured logging with ELK - part 1
• Search for 😋 Emoji with Elasticsearch 🔎
• Complete Guide to the ELK Stack

• ElasticSearch in action Thijs Feryn a begginer overview
• How we scaled Raygun
• Getting started with ElasticSearch
• Speed is a Key: Elasticsearch under the Hood introduction + basic performance optimization
• $$ Pluralsight: Getting Started With Elasticsearch for .NET Developers this course will introduce users to Elasticsearch, how it works, and how to use it with .NET projects.
• How Elasticsearch powers the Guardian's newsroom

• #bbuzz 2015: Adrien Grand – Algorithms and data-structures that power Lucene and Elasticsearch
• Rafał Kuć - Running High Performance Fault-tolerant Elasticsearch Clusters on Docker and slides

• ElasticSearch config for a write-heavy cluster - reyjrar/elasticsearch.yml

Yelp, IFTTT, StackExchange, Raygun, Mozilla, Spotify, CERN, NASA

• Technology Explained Blog
• EagerElk
• Tim Roes Blog

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