Web 3.0

CumulusRDF is an RDF store on cloud-based architectures. CumulusRDF provides a REST-based API with CRUD operations to manage RDF data. The current version uses Apache Cassandra as storage backend. A previous version is built on Google's AppEngine. CumulusRDF is licensed under GNU Affero General Public License.

Wikidata aims to create a free knowledge base about the world that can be read and edited by humans and machines alike. It will provide data in all the languages of the Wikimedia projects, and allow for the central access to data in a similar vein as Wikimedia Commons does for multimedia files. Wikidata is currently in development.

a core ontology for organizational structures, aimed at supporting linked data publishing of organizational information across a number of domains. It is designed to allow domain-specific extensions to add classification of organizations and roles, as well as extensions to support neighbouring information such as organizational activities.

We help people make better connections through our understanding of language.

W3C Validator Suite is a service providing a new integrated view for evaluating Web site quality.  W3C Validator Suite integrates Web standards conformance tools in a way that makes it easier than ever to keep your Web site compliant with the latest Web standards.

Resource Description Framework (RDF) is a general-purpose language for representing information in the Web. This document defines a textual syntax for RDF called Turtle that allows an RDF graph to be completely written in a compact and natural text form, with abbreviations for common usage patterns and datatypes. Turtle provides levels of compatibility with the existing N-Triples format as well as the triple pattern syntax of the SPARQL W3C Recommendation.

web page is the home of the LOD cloud diagram. This image shows datasets that have been published in Linked Data format, by contributors to the Linking Open Data community project and other individuals and organisations. It is based on metadata collected and curated by contributors to the Data Hub.

Have you tried OpenRefine previously known as GoogleRefine previously known as Gridworks? =) It is out and ready to be used, supported and extended. Good news: someone already LOD-enabled it for you. We provide a set of extensions either integrated with the latest version of OpenRefine, or being available for download separately.

Neologism is a vocabulary publishing platform for the Web of Data, with a focus on ease of use and compatibility with Linked Data principles. Neologism is free and Open Source.

document describes the use of HTTP for accessing, updating, creating and deleting resources from servers that expose their resources as Linked Data. It provides some new rules as well as clarifications and extensions of the four rules of Linked Data [LINKED-DATA]: 1. Use URIs as names for things

Build intelligent apps with Freebase data Explore a free, open knowledge graph of 36 million people, places, and things.

The primary goal of the project is to construct an ontology that will model Idea Management Systems. However, we also devote to study in detail the appliance of the data schema onto existing systems and exploiting it to achieve real, measurable benefits.

The YAGO-NAGA project started in 2006 with the goal of building a conveniently searchable, large-scale, highly accurate knowledge base of common facts in a machine-processible representation.