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<a  href="http://www.elearnmag.org/subpage.cfm?section=opinion&article=31-1">Cascades and Connectivity</a><br/>
Unrefereed Magazine Article. 
Dec 05, 2004.  
<em>eLearn Magazine</em>, Association for Computing Machinery [<a  href="http://www.elearnmag.org/subpage.cfm?section=opinion&article=31-1">Link</a>] 
[<a  href="http://www.downes.ca/post/53882">Full Text</a>]
</p>Force:yes