This tool, developed by the Department of Computer Engineering, Kasetsart University, presents a hybrid approach to detect ill-defined relationships of terms and suggesting more precisely defined relationships. The system consists of three main modules: Refinement rule Acquisition, Detection and Suggestion, and Verification. The rule acquisition module is a tool used for acquiring the refinement rules from experts and by machine learning.

This service retrieves a Web page and automatically generates Dublin Core metadata, either as HTML tags or as RDF/XML, suitable for embedding in the ...section of the page. The generated metadata can be edited using the form provided and converted to various other formats (USMARC, SOIF, IAFA/ROADS, TEI headers, GILS, IMS or RDF) if required. Optional, context sensitive, help is available while editing.

DSpace is a digital repository management system conceived for the setting up and management of institutional repositories and for digital archiving needs. A particular focus has been put in the subject of electronic objects management, digital preservation and publishing. It is Open Source and freely available, It is possible to customize it and extend it. It is backend by a solid community of DSpace users and developers. 

The Evergreen Project develops an open source ILS (integrated library system) used by approximately 800 libraries.  The software is used by libraries to provide their public catalog interface as well as to manage back-of-house operations such as circulation (checkouts and checkins), acquisition of library materials, and (particularly in the case of Evergreen) sharing resources among groups of libraries.

The tool helps to format a feed's display with the information you want to use on your web site. All you need to enter is the URL for the RSS source, and select the desired options below.

The Inmagic DB/Text Library Suite is a full featured, Web-based library management system comprised of TextWorks, WebPublisher PRO and Inmagic Genie. Library Suite combines highly flexible information management tools with a Web-based integrated library system (ILS) to easily manage, publish and access library and resource center assets.

KAON is an open-source ontology management infrastructure targeted for business applications. It includes a comprehensive tool suite allowing easy ontology creation and management, as well as building ontology-based applications. An important focus of KAON is on integrating traditional technologies for ontology management and application with those used in business applications, such as relational databases.

The multilingual semantic search assistant (MSSA) is a web-based tool helping users to find better information in fulltext-based or metadata-based search engines. The MSSA implements four independent functions, each associated with the AGROVOC multilingual thesaurus, to assist users in choosing better keywords: a Boolean search builder, a Topic Browser, a multilingual query builder supporting cross-language searching, a synonym expansion query builder. Currently set to access the AGRIS search portal, the MSSA is designed as a plug-in for any kind of search engine.

The tool can be downloaded from here.

A technical and installation documentation is available here.

OntoViz is an attempt to enable the user to visually browse and navigate large and complex ontologies containing millions of terms and various relationships between them.

OWLDoc is a tool that generates JavaDoc style html page documentation for an OWL ontology. OWLDoc has been implemented so that it may be used with Protégé-OWL in order to generate documentation for OWL ontologies. OWLDoc offers various configuration options. For example it is possible to include the Abstract Syntax representation of classes, properties and individuals . OWLDoc also supports the possibility of localising the labels used in the pages it generates - different languages can be 'plugged' in.

Description: Protégé is a free, open source ontology editor and knowledge-base framework. It is based on Java, is extensible, and provides a foundation for customized knowledge-based applications. It supports Frames, XML Schema, RDF(S) and OWL. It provides a plug-and-play environment that makes it a flexible base for rapid prototyping and application development.

Pubby is an RDF server that adds a Linked Data interface to existing SPARQL-capable triple stores.
Features:

• Provides a Linked Data interface to local or remote SPARQL protocol servers
• Provides dereferenceable URIs by rewriting URIs found in the SPARQL-exposed dataset into the Pubby server's namespace
• Provides a simple HTML interface showing the data available about each resource
• Takes care of handling 303 redirects and content negotiation
• Compatible with Tomcat and Jetty servlet containers
• Includes a metadata extension to add metadata to the provided data

This is a validator for syndicated feeds and works with RSS 0.90, 0.91, 0.92, 0.93, 0.94, 1.0, and 2.0, and Atom feeds. Enter the address of your feed and click Validate. If the validator finds any problems in the feed, it will give a message for each type of problem and highlight where the problem first occurs in the feed. If the messages are unclear, click the "help" link next to the message for a fuller explanation. It validates RSS feeds against the rules defined in the RSS 2.0 specification and elements from some commonly used namespaces like Dublin Core.

This is an experimental (alpha version) service which validates Simple Knowledge Organization Schema format in RDF/XML.

OBO-Edit is an open source ontology editor written in Java. It is optimized for the OBO biological ontology file format. It features an easy to use editing interface, a simple but fast reasoner, and powerful search capabilities.

VIVO is an open source semantic web application originally developed and implemented at Cornell. When installed and populated with researcher interests, activities, and accomplishments, it enables the discovery of research and scholarship across disciplines at that institution and beyond. VIVO supports browsing and a search function which returns faceted results for rapid retrieval of desired information. Content in any local VIVO installation may be maintained manually,  brought into VIVO in automated ways from local systems of record, such as HR, grants, course, and faculty activity databases, or from database providers such as publication aggregators and funding agencies.

Vocbench is a tool that helps information managers build and structure knowledge models. It is particularly well suited to manage multilingual vocabularies that require a distributed and collaborative environment.

An online tool that takes an OWL file as input and validates it against a given species of OWL.