Internet search engine update

Online Magazine had a roundup of the latest features added to the top Search Engines in it's March issue. Most interesting to me, since I am doing a lot of offline research (i.e. poring through Usability literature), is the approach that Altavista is taking with their Raging Search [ragingsearch.altavista.com]. It looks a lot like Google, but allows users to customize the search interface. I'd like to see the stats on this over the next few months.