diff --git a/src/docbkx/book.xml b/src/docbkx/book.xml
index 7bb504980cb..b47aa8f06a8 100644
--- a/src/docbkx/book.xml
+++ b/src/docbkx/book.xml
@@ -860,6 +860,7 @@ admin.enableTable(table);
   <title>HBase and MapReduce</title>
   <para>See <link xlink:href="http://hbase.org/apidocs/org/apache/hadoop/hbase/mapreduce/package-summary.html#package_description">HBase and MapReduce</link> up in javadocs.
   Start there.  Below is some additional help.</para>
+  <para>For more information about MapReduce, see the <link xlink:href="http://hadoop.apache.org/common/docs/current/mapred_tutorial.html">Hadoop MapReduce Tutorial</link>.</para>
   <section xml:id="splitter">
     <title>Map-Task Spitting</title>
     <section xml:id="splitter.default">