OWL

• manchester-syntax-owl
• OWL 2 Web Ontology Language Document Overview
• OWL 2 Web Ontology Language Primer
• manchester

ShEx

• ShEx - Shape Expressions

Linked Data Templates

• Linked Data Templates

• XSD Datatypes

RDF

• RDF 1.1 Primer
• RDF 1.1 Semantics
• RDF 1.1 Concepts and Abstract Syntax
• RDF 1.1: On Semantics of RDF Datasets
• RDF Dataset Normalization

RDFS

• RDF Schema 1.1

SHACL

• SHACL Shapes Constraint Language
• SHACL Advanced Features
• SHACL JavaScript Extensions
• SHACL Test Suite and Implementation Report

SPARQL

• SPARQL 1.1 Overview
• SPARQL 1.1 Query Language
• SPARQL 1.1 Update
• SPARQL 1.1 Service Description
• SPARQL 1.1 Federated Query
• SPARQL 1.1 Query Results JSON Format
• SPARQL 1.1 Query Results CSV and TSV Formats
• SPARQL 1.1 Query Results XML Format (Second Edition)
• SPARQL 1.1 Entailment Regimes
• SPARQL 1.1 Protocol
• SPARQL 1.1 Graph Store HTTP Protocol

RDFa

• XHTML+RDFa 1.1 - Third Edition
• RDFa Lite 1.1 - Second Edition
• HTML+RDFa 1.1 - Second Edition

Tabular

• Model for Tabular Data and Metadata on the Web

Open Services for Lifecycle Collaboration (OSLC)

• open-services.net

Web Annotation Data Model

• Web Annotation Vocabulary
• Web Annotation Protocol
• Web Annotation Data Model

Linked Data Notifications

• Linked Data Notifications

Linked Data Platform

• Linked Data Platform 1.0 Primer
• Linked Data Platform Best Practices and Guidelines
• Linked Data Platform 1.0
• Linked Data Platform 1.0 Test Cases

Data Cube extensions

• QB4ST: RDF Data Cube extensions for spatio-temporal components

Data Cube extensions

• NitrosBase - (F)
• Strabon - (OS) A spatiotemporal RDF store.
• Virtuoso - ($/OS).
• Oracle - ($).
• Mulgara - (OS).
• Node-Quadstore - (OS) A LevelDB-backed graph database for Node.js supporting quads, SPARQL queries and the RDF/JS interface.
• neptune - ($) Amazon Neptune is a fast, reliable, fully managed graph database service that makes it easy to build and run applications that work with highly connected datasets.

Academic

• dipLODocus
• SW-Store
• Yars2
• Shard
• Hexastore
• BitMat
• LUPOSDATE

Data Cube extensions

• Knowledge Representation and Reasoning Group (KRR) - Research group is based at the Vrije Universiteit Amsterdam (VU).
• eXascale Infolab - eXascale Infolab, University of Fribourg, Switzerland.
• Data Semantics Lab - Data Semantics Lab, Wright State University
• DICE: Data Science Group - Universität Paderborn.

Streaming SPARQL

• Strider

Federated SPARQL

• Semagrow
• SemWIQ

Federated SPARQL

• Berlin SPARQL Benchmark (BSBM)
• dice-group/triplestore-benchmarks - An Evaluation of Triplestore Benchamrks.
• RdfStoreBenchmarking
• Hobbit - Holistic Benchmarking of Big Linked Data.
• SP2Bench
• OTM Benchmark - A benchmark of object-triple mapping (OTM) libraries.

SPARQL Applications

• lens2odata - A GUI for discovery, search, and graph of RDF sources.
• sparql2xquery - SPARQL to XQuery Translator for use with MarkLogic Semantic Toolkit.
• decentsparql
• Porthole - Mac SPARQL editor and client.

Data Cube extensions

• Turtle - turtle` |
• TriG - trig` |
• JSON-LD - based Serialization for Linked Data. | `application/ld+json` |
• RDF/JSON
• N-Triples - based syntax for RDF datasets. | `application/n-triples` |
• N-Quads - based syntax for RDF datasets. | `application/n-quads`, `text/x-nquads`, `text/nquads` |
• Notation3
• RDF/XML
• TriX
• aREF
• RDF/POST - www-form-urlencoded` |
• RDF/POST - www-form-urlencoded` |

Data Cube extensions

• CDT
• RDF Datatyping - This document summarizes the common understanding of the RDF Core Working Group (further referred to as WG) with regards to the theoretical foundation for datatyping of literal values and serves as a basis of definition, discussion, and comparison of all proposed schemes for achieving a complete datatyping solution which are to be considered by the WG.

Data Cube extensions

• Epimorphics
• PoolParty
• Oxford Semantic Technologies
• Capsenta
• Oracle
• OntoText
• TopQuadrant
• OpenLinkSoftware
• in4mium
• Xylem Technologies
• inova8
• zazuko

Data Cube extensions

• BestBuy
• Siemens
• Facebook

Community

• foaf - Friend of a Friend (FOAF) ontology.
• juso-ontology - Vocabulary for describing geographical addresses and features.
• obo-relations - Relation Ontology. Relationship types shared across multiple ontologies.
• bevon - Beverage ontology.
• schema.org - Structured data on the Internet (Google, Microsoft, Yahoo and Yandex).
• dbpedia

World Wide Web Consortium (W3C)

• WGS84 - Basic Geo (WGS84 lat/long) Vocabulary.
• vcard - vCard Ontology - for describing People and Organizations.
• void - Describing Linked Datasets with the VoID Vocabulary.
• time - Time Ontology in OWL.
• org - The Organization Ontology.
• pim
• prov-o - Represent provenance information.
• dcat - DCAT is an RDF vocabulary designed to facilitate interoperability between data catalogs published on the Web.
• prof

Educational

• Wine - Wine Ontology is a popular example of an OWL ontology.
• W3C Best Practices for Publishing Linked Data
• Pizza - A step-by-step guide to modelling in OWL using the popular Protégé OWL tools.

SPARQL Applications

• hypergraphql - GraphQL interface for querying and serving linked data on the Web.

SPARQL Applications

• CarbonLDP - ($)

Conferences

• International Semantic Web Conference (ISWC 2019)

Blogs

• Bob DuCharme's weblog technology for representing and linking information
• Jörn's Blog
• Ontola Linked Data Blog
• Planet RDF

Groups

• RDF-DEV - RDF-DEV COMMUNITY GROUP.
• w3c semantic web
• JSON-LD Working Group

Groups

• GNOSS-Sherlock - ($) Cognitive Intelligence tool for machines to understand us.

XML

• db2triples - Antidot implementations of R2RML and Direct Mapping specifications.
• XR2RML
• paper
• RML - RDF Mapping language for mapping JSON, CSV and XML to RDF.
• any23
• Adapt R2RML

Object to RDF Mapping

• jennabean

Educational

• ROBOT - command line swiss-army knife for ontology developers

Educational

• HermiT
• RacerPro
• Manchester List of Reasoners

Educational

• Linked Data
• Explorer's Guide to the Semantic Web
• Semantic Web Programming
• Semantic Web for the Working Ontologist
• Demystifying OWL for the Enterprise
• Structures for Organizing Knowledge: Exploring Taxonomies, Ontologies, and Other Schema
• Validating RDF Data
• Learning SPARQL
• Demystifying OWL for the Enterprise

Haskell

• swish

JavaScript

• Jessa
• RDFJS - Github Organization that maintains modern JavaScript RDF libraries based on open, maintained standards

OCaml

• ocaml-rdf - Manipulate RDF graphs and execute Sparql queries.

Perl

• Attean
• RDF::Trine

PHP

• semsol
• sparqllib

Prolog

• SWI-Prolog Semantic Web Library

Python

• RdfAlchemy
• ORDF
• Fuxi - Bi-directional logical reasoning system for the semantic web.

Visual Studio Code

• Stardog RDF Grammars

BBedit

• Turtle syntax highlighter

BBedit

• SPARQLFilterFlow
• SparqlBlocks - Build SPARQL queries with blocks

BBedit

• The RDF Data Cube Vocabulary
• OpenCube Toolkit

BBedit

• BBC - Ontologies - The ontologies the BBC is using to support its audience facing applications such as BBC Sport, BBC Education, BBC Music, News projects and more.

BBedit

• rdf-pipeline

BBedit

• trinity - An application development platform for Microsoft .NET and Mono. It allows to easily build Linked Data and Semantic Web applications based on RDF.

BBedit

• RDFConvert - RDFConvert is a simple command-line tool for converting RDF file betweeen different syntax formats.
• How to diff RDF

BBedit

• mu-semtech - An Ecosystem of User-facing Microservices supported by Semantic Models.

BBedit

• Poolparty
• skosprovider - Skosprovider provides an interface that can be included in an application to allow it to talk to different SKOS vocabularies.
• skosshuttle
• protege skos editor

BBedit

• fred - a machine reader for the Semantic Web
• NIF
• Lemon - The Lexicon Model for Ontologies
• Wordnet

BBedit

• grefine-rdf-extension - An extension to Google Refine that enables graphical mapping of Google Refine project data to an RDF skeleton and then exporting it in RDF format.
• stardog-ubuntu-scripts
• motools - Music ontology tools
• activitypub
• CSO - The Computer Science Ontology (CSO) is a large-scale ontology of research areas that was automatically generated using the Klink-2 algorithm on the Rexplore dataset, which consists of about 16 million publications, mainly in the field of Computer Science.
• metreeca - The model-driven linked data platform.
• psparql - PSPARQL (for Path SPARQL) is a query language for RDF.
• ont-api