href="concept_check/concept_check.htm">concept check</a>
        - Tools for generic programming, from Jeremy Siek.</li>
    <li><a href="utility/enable_if.html">enable_if</a> - 
	Selective inclusion of function template overloads, from Jaakko
	J&auml;rvi, Jeremiah Willcock, and Andrew Lumsdaine.</li>
    <li><a href="utility/operators.htm">operators</a> - Templates
        ease arithmetic classes and iterators, from Dave Abrahams
        and Jeremy Siek.</li>
    <li><a href="property_map/property_map.html