In this area we will share some useful links. Please contribute with your suggestions

Time-series databases
Time-series databases are used to store time-series, which are sequences of time-based tuples (or time-based streams). Time-series databases have been gaining popularity since 2015, with some of the main driving forces behind this popularity being monitoring of computer systems inside clusters and IoT.
Starting points
Some videos:
Talks by leading time-series database vendors @ Time Series database Lectures
https://db.cs.cmu.edu/seminar2017/
Some papers: Gorilla: a fast, scalable, in-memory time series database https://www.vldb.org/pvldb/vol8/p1816-teller.pdf
Some good readings from Timescale DB blog:
https://blog.timescale.com/blog/
https://blog.timescale.com/blog/what-the-heck-is-time-series-data-and-why-do-i-need-a-time- series-database-dcf3b1b18563/ https://blog.timescale.com/blog/time-series-compression-algorithms-explained/
https://blog.timescale.com/blog/how-to-proactively-manage-long-term-data-storage-with- downsampling/


Graph Databases and related

openCypher: http://www.opencypher.org

No more joins: An overview of Graph database query languages: https://developer.ibm.com/dwblog/2017/overview-graph-database-query-languages/

Graph processing with SQL Server and Azure SQL Database: https://docs.microsoft.com/en-us/sql/relational-databases/graphs/sql-graph-overview

Graph Processing versus Graph Databases: http://jimwebber.org/2011/08/graph-processing-versus-graph-databases/

Why Graph Technology Is Ready For Its Close Up In 2016: https://www.forbes.com/sites/danwoods/2015/12/29/why-graph-technology-is-ready-for-its-close-up-in-2016/

Semantic Web

The 3 Types of Search Queries & How You Should Target Them: http://www.wordstream.com/blog/ws/2012/12/10/three-types-of-search-queries

What Is SEO Content? A Guide to Creating Content for SEO: http://www.wordstream.com/blog/ws/2012/01/17/seo-content-beginners-guide

Introducing the Knowledge Graph: things, not strings: https://googleblog.blogspot.pt/2012/05/introducing-knowledge-graph-things-not.html

Semantic Web on W3C: https://www.w3.org/standards/semanticweb/

Linked Data on W3C: https://www.w3.org/standards/semanticweb/data

RDF 1.1 Concepts and Abstract Syntax: https://www.w3.org/2001/sw/wiki/RDF

Some notes from Tim Berners-Lee:

Linked Open Data: http://linkeddata.org

What Do URIs Mean Anyway?: http://www.jenitennison.com/2011/07/05/what-do-uris-mean-anyway.html