Index: head/en_US.ISO8859-1/books/handbook/dtrace/chapter.xml
===================================================================
--- head/en_US.ISO8859-1/books/handbook/dtrace/chapter.xml
+++ head/en_US.ISO8859-1/books/handbook/dtrace/chapter.xml
@@ -216,9 +216,9 @@
       language of &dtrace;.  This language is called the D language
       and it is very similar to C++.  An in depth discussion of the
       language is beyond the scope of this document.  It is
-      extensively discussed at <uri
-	xlink:href="http://wikis.oracle.com/display/DTrace/Documentation">http://wikis.oracle.com/display/DTrace/Documentation</uri>.</para>
-  </sect1>
+      covered extensively in the <uri
+	xlink:href="http://www.dtrace.org/guide">Illumos Dynamic
+	Tracing Guide</uri>.</para></sect1>
 
   <sect1 xml:id="dtrace-using">
     <title>Using &dtrace;</title>