diff --git a/src/docbkx/book.xml b/src/docbkx/book.xml
index 50bd38c7983..75feb9f2aa3 100644
--- a/src/docbkx/book.xml
+++ b/src/docbkx/book.xml
@@ -1724,7 +1724,8 @@ of all regions.
               the SSTable file described in the <link xlink:href="http://labs.google.com/papers/bigtable.html">BigTable [2006]</link> paper and on
               Hadoop's <link xlink:href="http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/io/file/tfile/TFile.html">tfile</link>
               (The unit test suite and the compression harness were taken directly from tfile). 
-              See Schubert Zhang's blog post on <link xlink:ref="http://cloudepr.blogspot.com/2009/09/hfile-block-indexed-file-format-to.html">HFile: A Block-Indexed File Format to Store Sorted Key-Value Pairs</link> for a thorough introduction.
+              Schubert Zhang's blog post on <link xlink:ref="http://cloudepr.blogspot.com/2009/09/hfile-block-indexed-file-format-to.html">HFile: A Block-Indexed File Format to Store Sorted Key-Value Pairs</link> makes for a thorough introduction to HBase's hfile.  Matteo Bertozzi has also put up a
+              helpful description, <link xlink:href="http://th30z.blogspot.com/2011/02/hbase-io-hfile.html?spref=tw">HBase I/O: HFile</link>.
           </para>
       </section>