Hi All,
    Some criticism on RDF from the experience we've gained in OpenTox :
http://is.gd/qLJG3h . The article is not complete yet and will be
enriched with more facts and diagrams. We also started an interesting
discussion with Martin here : http://is.gd/cUKaCE which we can continue
on the mailing list. 

Best regards,
Pantelis