   <center>    by <nobr><a href=http://www.cs.washington.edu/homes/jshakes>Jonathan     Shakes</a></nobr>,    <nobr><a href=http://www.cs.washington.edu/homes/marclang>Marc     Langheinrich</a></nobr>, and     <nobr><a href=http://www.cs.washington.edu/homes/etzioni>Professor Oren     Etzioni</a></nobr>   </center>   </td>
