where can i find a list of sites that use rdf?

I'm building a site, where I'm using rdf-files to display the headlines of
some other sites. (freshmeat, slashdot, ...)
where can I find a list of other sites that publish an rdf-file containing
url's and titles of headlines? I don't only need the links to the sites, but
also the exact URL to the rdf-files. is there a way to search sites like

Sven Magnus - ? mailto:sven@1eEurope.be
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Received on Thursday, 21 December 2000 08:23:33 UTC