Why are you comparing RDF with syndication formats? Atom and RSS are formats for data that fits a specific pattern, RDF is a generic data structure. A better co

Why are you comparing RDF with syndication formats? Atom and RSS are formats for data that fits a specific pattern, RDF is a generic data structure. A better comparison would be RDF and XML. If there is some advantage to putting (e.g.) real estate data inside an Atom or RSS feed, you still need a format to represent the data itself. RDF's advantage is that it's extensible and makes it very easy to combine independent datasets. I don't think that Atom/RSS/XML are easier to use than RDF; they're just more familiar.