Document the link to the HowTo guide.
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index e5df766..26aa745 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -1148,6 +1148,9 @@
    function, see the `CmpToKey recipe in the ASPN cookbook
    <http://code.activestate.com/recipes/576653/>`_\.
 
+   For sorting examples and a brief sorting tutorial, see `Sorting HowTo
+   <http://wiki.python.org/moin/HowTo/Sorting/>`_\.
+
    .. versionadded:: 2.4