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Annotea is a W3C LEAD (Live Early Adoption and Demonstration) project under Semantic Web Advanced Development (SWAD). Annotea enhances collaboration via shared metadata based Web annotations, bookmarks, and their combinations. By annotations we mean comments, notes, explanations, or other types of external remarks that can be attached to any Web document or a selected part of the document without actually needing to touch the document. When the user gets the document he or she can also load the annotations attached to it from a selected annotation server or several servers and see what his peer group thinks. Similarly shared bookmarks can be attached to Web documents to help organize them under different topics, to easily find them later, to help find related material and to collaboratively filter bookmarked material.

PBCore, the metadata standard for the exchange of Public Broadcasting content. This site is in the process of a re-design, to be launched at the end of January, 2011.

Wandora is a general purpose information extraction, management, and publishing application based on Topic Maps and Java Swing. Wandora has graphical user interface, layered presentation of knowledge, several data storage options, huge collection of data extraction, import and export options, embedded server, and open plug-in architecture. Wandora is a FOSS application with GNU GPL license.

InfiniteGraph enables large-scale graph processing, data analytics and discovery for organizations developing systems and services around social networking, business intelligence, scientific research, national security or similar areas.

The mission of the RDF Working Group, part of the Semantic Web Activity, is to update the 2004 version of the Resource Description Framework (RDF) Recommendation. The scope of work is to extend RDF to include some of the features that the community has identified as both desirable and important for interoperability based on experience with the 2004 ...

Today's web is great for text and images, but less good for structured information. If people could easily find and understand the information they need, combining multiple sources to answer their questions and tell their own stories, then that would open up all kinds of new possibilities. Our aim is to help make that happen.

Topicmarks summarizes text documents for you electronically. Get a smart synopsis in minutes instead of reading everything yourself.

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The Talis Platform weaves Data with the Web to create a highly available and adaptable environment for data sharing. Supporting data publishers and developers, the Platform provides:

Nice slide presentation from the Pew Internet & American Life Project, about the evolution of the Web, with reference to social networks & issues related to libraries. My personal highligths from this work: * The turn from groups to social networks lays the basis for a new social operating system * Being more civically engages on social networks helps building better communities (continue...)

Interesting slides, that "introduce the necessity of a new language that can set a link between the machine process of cyberspace and the uman collective intelligence, which is dynamic, in constant change and made in different languages, from different approaches."....

SemantiNet's API lets you easily query Wikipedia, Linked-Data and a variety of APIs for the development of data driven applications.

The first Semantic Engine that learns Add a semantic flavor to your apps. With  Meaningtool you can create your own   Semantic Trees and let its intelligence    learn new concepts to filter and categorize     websites, text and users in any language!

AlchemyAPI provides content owners and web developers with a rich suite of content analysis and meta-data annotation tools. Expose the semantic richness hidden in any content, using named entity extraction, keyword extraction, sentiment analysis, document categorization, concept tagging, language detection, and structured content scraping. Use AlchemyAPI to enhance your website, blog, content management system, or semantic web application.