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<p>
<a  href="http://technologysource.org/article/marcopolo/">MarcoPolo</a><br/>
Unrefereed Journal Column. 
Jul 01, 2000.  
<em>The Technology Source</em>, July/August 2000 online,  [<a  href="http://technologysource.org/article/marcopolo/">Link</a>] 
[<a  href="http://www.downes.ca/post/31515">Full Text</a>]
</p>Force:yes