Index: head/en_US.ISO8859-1/books/handbook/introduction/chapter.xml
===================================================================
--- head/en_US.ISO8859-1/books/handbook/introduction/chapter.xml
+++ head/en_US.ISO8859-1/books/handbook/introduction/chapter.xml
@@ -706,7 +706,11 @@
 	</listitem>
       </itemizedlist>
 
-      <para>Wikipedia also maintains a <link
+      <para>A list of <link
+	  xlink:href="https://www.freebsdfoundation.org/about/testimonials/">
+	  testimonials from companies basing their products and
+	  services on &os;</link> can be found at the FreeBSD
+	  Foundation website.  Wikipedia also maintains a <link
 	  xlink:href="https://en.wikipedia.org/wiki/List_of_products_based_on_FreeBSD">list
 	  of products based on &os;</link>.</para>