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@@ -49,6 +49,17 @@ h3:before{counter-increment:h3;content:'C.' counter(h2) '.' counter(h3) '. '}
 <li><a href=http://docs.python.org/3.1/reference/datamodel.html#invoking-descriptors>Invoking Descriptors</a> in the official Python documentation
 </ul>
 
+<p>Threading <i class=baa>&amp;</i> multiprocessing:</p>
+
+<ul>
+<li><a href=http://docs.python.org/3.1/library/threading.html><code>threading</code> module</a>
+<li><a href=http://www.doughellmann.com/PyMOTW/threading/><code>threading</code>&nbsp;&mdash;&nbsp;Manage concurrent threads</a>
+<li><a href=http://docs.python.org/3.1/library/multiprocessing.html><code>multiprocessing</code> module</a>
+<li><a href=http://www.doughellmann.com/PyMOTW/multiprocessing/><code>multiprocessing</code>&nbsp;&mdash;&nbsp;Manage processes like threads</a>
+<li><a href=http://jessenoller.com/2009/02/01/python-threads-and-the-global-interpreter-lock/>Python threads and the Global Interpreter Lock</a> by Jesse Noller
+<li><a href=http://blip.tv/file/2232410>Inside the Python <abbr>GIL</abbr> (video)</a> by David Beazley
+</ul>
+
 <p>Metaclasses:
 
 <ul>