Mention the new GTK+ 3 bindings.
diff --git a/Doc/library/othergui.rst b/Doc/library/othergui.rst
index 1f4aed7..5e35358 100644
--- a/Doc/library/othergui.rst
+++ b/Doc/library/othergui.rst
@@ -34,11 +34,17 @@
.. seealso::
- `PyGTK <http://www.pygtk.org/>`_
- is a set of bindings for the `GTK <http://www.gtk.org/>`_ widget set. It
- provides an object oriented interface that is slightly higher level than
- the C one. It comes with many more widgets than Tkinter provides, and has
- good Python-specific reference documentation. There are also bindings to
+ `PyGObject <https://live.gnome.org/PyGObject>`_
+ provides introspection bindings for C libraries using
+ `GObject <http://developer.gnome.org/gobject/stable/>`_. One of
+ these libraries is the `GTK+ 3 <http://www.gtk.org/>`_ widget set.
+ GTK+ comes with many more widgets than Tkinter provides. An online
+ `Python GTK+ 3 Tutorial <http://python-gtk-3-tutorial.readthedocs.org/en/latest/>`_
+ is available.
+
+ `PyGTK <http://www.pygtk.org/>`_ provides bindings for an older version
+ of the library, GTK+ 2. It provides an object oriented interface that
+ is slightly higher level than the C one. There are also bindings to
`GNOME <http://www.gnome.org>`_. One well known PyGTK application is
`PythonCAD <http://www.pythoncad.org/>`_. An online `tutorial
<http://www.pygtk.org/pygtk2tutorial/index.html>`_ is available.