RDF/RSS, as this type of file is called, is a standard that is also used by other websites to publish their headlines. For example, you can import the headlines from Slashdot: http://slashdot.org/slashdot.rdf
or, for our German readers ;-)
from Heise online, http://www.heise.de/newsticker/heise.rdf
.
Look around. Once you know what to look for, you'll find many news sites supporting this format.
bye, Dirk