<a href="property_map/property_map.html">property map</a>
        - Concepts defining interfaces which map key objects to
        value objects, from Jeremy Siek.</li>
    <li><a href="python/doc/index.html">python</a> - Reflects C++
        classes and functions into <a
        href="http://www.python.org">Python</a>, from Dave
        Abrahams.</li>
    <li><a href="random/index.html">random</a> - A complete
        system for random number generation, from Jens Maurer.</li>
    <li><a href="rational/inde