diff --git a/en_US.ISO8859-1/books/faq/book.sgml b/en_US.ISO8859-1/books/faq/book.sgml
index 99886a3ddc..b84757389d 100644
--- a/en_US.ISO8859-1/books/faq/book.sgml
+++ b/en_US.ISO8859-1/books/faq/book.sgml
@@ -13,7 +13,7 @@
       </author>
     </authorgroup>
 
-    <pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.71 2000/07/16 18:06:44 ben Exp $</pubdate>
+    <pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.72 2000/07/16 20:39:43 ben Exp $</pubdate>
 
     <abstract>
       <para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X.  All entries
@@ -8440,6 +8440,28 @@ morning after leaving it idle overnight.</para>
 
 </answer></qandaentry>
 
+      <qandaentry>
+        <question>
+          <para>Why does &man.top.1; show very little free memory even
+            when I have very few programs running?</para>
+        </question>
+	  
+        <answer>
+          <para>The simple answer is that free memory is wasted
+            memory.  Any memory that your programs don't actively
+            allocate is used within the FreeBSD kernel as disk
+            cache.  The values shown by &man.top.1; labelled as
+            <literal>Inact</literal>, <literal>Cache</literal>, and
+            <literal>Buf</literal> are all cached data at different
+            aging levels.  This cached data means the system does
+            not have to access a slow disk again for data it has
+            accessed recently, thus increasing overall performance.
+            In general, a low value shown for <literal>Free</literal>
+            memory in &man.top.1; is good, provided it is not
+            <emphasis>very</emphasis> low.</para>
+        </answer>
+      </qandaentry>
+
 <qandaentry><question>
 <para>        Why use (what are) a.out and ELF executable formats?
       </para></question><answer>
diff --git a/en_US.ISO_8859-1/books/faq/book.sgml b/en_US.ISO_8859-1/books/faq/book.sgml
index 99886a3ddc..b84757389d 100644
--- a/en_US.ISO_8859-1/books/faq/book.sgml
+++ b/en_US.ISO_8859-1/books/faq/book.sgml
@@ -13,7 +13,7 @@
       </author>
     </authorgroup>
 
-    <pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.71 2000/07/16 18:06:44 ben Exp $</pubdate>
+    <pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.72 2000/07/16 20:39:43 ben Exp $</pubdate>
 
     <abstract>
       <para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X.  All entries
@@ -8440,6 +8440,28 @@ morning after leaving it idle overnight.</para>
 
 </answer></qandaentry>
 
+      <qandaentry>
+        <question>
+          <para>Why does &man.top.1; show very little free memory even
+            when I have very few programs running?</para>
+        </question>
+	  
+        <answer>
+          <para>The simple answer is that free memory is wasted
+            memory.  Any memory that your programs don't actively
+            allocate is used within the FreeBSD kernel as disk
+            cache.  The values shown by &man.top.1; labelled as
+            <literal>Inact</literal>, <literal>Cache</literal>, and
+            <literal>Buf</literal> are all cached data at different
+            aging levels.  This cached data means the system does
+            not have to access a slow disk again for data it has
+            accessed recently, thus increasing overall performance.
+            In general, a low value shown for <literal>Free</literal>
+            memory in &man.top.1; is good, provided it is not
+            <emphasis>very</emphasis> low.</para>
+        </answer>
+      </qandaentry>
+
 <qandaentry><question>
 <para>        Why use (what are) a.out and ELF executable formats?
       </para></question><answer>