Fixing broken links in doc, part 4: some more breaks and redirects
diff --git a/Doc/howto/cporting.rst b/Doc/howto/cporting.rst
index 6ebcc41..d7a7086 100644
--- a/Doc/howto/cporting.rst
+++ b/Doc/howto/cporting.rst
@@ -252,6 +252,6 @@
 =============
 
 If you are writing a new extension module, you might consider `Cython
-<http://www.cython.org>`_.  It translates a Python-like language to C.  The
+<http://cython.org/>`_.  It translates a Python-like language to C.  The
 extension modules it creates are compatible with Python 3 and Python 2.
 
diff --git a/Doc/howto/pyporting.rst b/Doc/howto/pyporting.rst
index 109a37b..e1a4609 100644
--- a/Doc/howto/pyporting.rst
+++ b/Doc/howto/pyporting.rst
@@ -609,11 +609,10 @@
 .. _future: http://python-future.org/
 .. _modernize: https://github.com/mitsuhiko/python-modernize
 .. _Porting to Python 3: http://python3porting.com/
-.. _PyPI: https://pypi.python.org/
+.. _PyPI: https://pypi.python.org/pypi
 .. _Python 3 Packages: https://pypi.python.org/pypi?:action=browse&c=533&show=all
 .. _Python 3 Q & A: http://ncoghlan-devs-python-notes.readthedocs.org/en/latest/python3/questions_and_answers.html
 .. _python-porting: https://mail.python.org/mailman/listinfo/python-porting
 .. _six: https://pypi.python.org/pypi/six
 .. _tox: https://pypi.python.org/pypi/tox
 .. _trove classifiers: https://pypi.python.org/pypi?%3Aaction=list_classifiers
-
diff --git a/Doc/howto/webservers.rst b/Doc/howto/webservers.rst
index 94a3762..6534753 100644
--- a/Doc/howto/webservers.rst
+++ b/Doc/howto/webservers.rst
@@ -519,7 +519,7 @@
 
    * `Mako <http://www.makotemplates.org/>`_
    * `Genshi <http://genshi.edgewall.org/>`_
-   * `Jinja <http://jinja.pocoo.org/2/>`_
+   * `Jinja <http://jinja.pocoo.org/>`_
 
 .. seealso::