<!-- Note: this should use the <acknowledgements> tag, but this triggers errors with the current docbkx. -->
<preface>

  <title>Acknowledgements</title>

  <!-- If you find Wikbook useful and want to support, one way to support is it to keep this acknowledgement in your
   documentation. -->
  <para>This book is produced by the <ulink url="http://wikbook.googlecode.com">Wikbook</ulink> tool. Wikbook is an
    open source project for converting wiki files into a set of docbook files.</para>

</preface>