



I am thrilled to announce that TopQuadrant has just released a completely free version of its Semantic Web development tool TopBraid Composer! See the press release here. In a nutshell, the Free Edition provides the basic editing capabilities of the Standard Edition, i.e. you can use it to load, edit and save RDF/OWL files using TopBraid's editing forms. Furthermore, the Free Edition has excellent SPARQL support, including full support for the SPARQL Inferencing Notation ( SPIN ). Like all editions of TopBraid Composer, the Free Edition is based on Eclipse and provides a stable and well-documented environment for newcomers to Semantic Web technology.