<p>The Open Directory Project is a collective effort to create an
index of useful Web resources. Several thousand volunteer editors,
each with an interest in their chosen topic, maintain their respective
categories, producing a Web guide that's much more up-to-date and
higher quality than <a href="http://www.yahoo.com">Yahoo</a>.
<p>As part of the ODP's open nature, the data making up the index is
available under a liberal licence; <a
href="http://www.dmoz.org/license.html">read the dmoz.org licence</a>
for the details. The data format is a pseudo-<a
href="http://www.w3.org/XML/">XML</a> format vaguely based on the <a
href="http://www.w3.org/RDF/">Resource Description Framework</a>
(RDF).
The link address is:
http://oedipus.sourceforge.net./