Point to PyGObject on http://www.pygtk.org/
PyGtk is also a synonym for PyGObject (Gtk3).
In that case you searching on search engines you are pointed to the PyGTK wikipedia page or http://www.pygtk.org/. None of them pointing to the current PyGObject website.
On http://www.pygtk.org/ there should be small hint about that there are two versions of PyGtk and offering a link.