  Recenlty, professors Oren <a href="http://www.cs.washington.edu/homes/etzioni/">Etzioni</a>, Steve <a href="http://www.cs.washington.edu/people/faculty/hanks.html">Hanks</a>, Tao <a href="http://www.cs.washington.edu/homes/jiang">Jiang</a> and I began investigating a fairly new problem: the <a href="http://metacrawler.cs.washington.edu:8080/index.html">metacrawler's</a> problem!  We introduced a few optimization models and came up with approximation algorithms under those models. <p>
