<p>If you maintain a directory of sites, you can list them on a page using the <code>drupal_client_page()</code> function. Sample instructions: </p>
<ul>
  <li>Ensure that you have the page content type enabled, and you can use PHP in an input format.</li>
  <li>Select create content &gt;&gt; page.</li>
  <li>For input format, select PHP code.</li>
  <li>Give the page a title. For body, put:
<pre>
&lt;?php
print drupal_client_page();
?&gt;
</pre>
  <li>Save the page.</li>
</ul>