When you submit
http://foo.bar.dom/quux.atom.xml, its entries will be available on
news.gmane.org (or
news.gwene.org) in the group
gwene.dom.bar.foo.quux.atom. You can also specify an alternate group name. Auto-submit like so:
http://gwene.org/index.php?url=http://foo.bar.dom/quux.atom.xml&auto=true&confirm=true