diff --git a/en_US.ISO8859-1/books/handbook/preface/preface.sgml b/en_US.ISO8859-1/books/handbook/preface/preface.sgml
index 433e7e8dce..a92102442b 100644
--- a/en_US.ISO8859-1/books/handbook/preface/preface.sgml
+++ b/en_US.ISO8859-1/books/handbook/preface/preface.sgml
@@ -388,6 +388,13 @@
 	  to configure various supported RAID levels.</para>
       </listitem>
     </varlistentry>
+    <varlistentry>
+      <term><emphasis><xref linkend="filesystems">, File Systems Support</emphasis></term>
+      <listitem>
+	<para>Examines support of non-native file systems in &os;, like the Z
+	  File System from &sun;.</para>
+      </listitem>
+    </varlistentry>
     <varlistentry>
       <term><emphasis><xref linkend="vinum-vinum">, Vinum</emphasis></term>
       <listitem>
@@ -420,9 +427,26 @@
 	that process.</para>
       </listitem>
     </varlistentry>
+    <varlistentry>
+      <term><emphasis><xref linkend="dtrace">, Dtrace</emphasis>
+      <listitem>
+	<para>Describes how to configure and use the DTrace tool from &sun;
+	  in &os;.  Dynamic tracing can help locate performance issues, by
+	  performing real time system analysis.</para>
+      </listitem>
+    </varlistentry>
 
 <!-- Part IV - Network Communications -->
 
+    <varlistentry>
+      <term><emphasis><xref linkend="updating">, Updating &os;</emphasis>
+      <listitem>
+	<para>Describes the latest system utilities that may be used to
+	  update a &os; system.  These are &man.freebsd-update.8; for
+	  the base system, and &man.portsnap.8; for the
+	  Ports&nbsp;Collection.</para>
+      </listitem>
+    </varlistentry>
     <varlistentry>
       <term><emphasis><xref linkend="serialcomms">, Serial Communications</emphasis></term>
       <listitem>