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        <pre>Interesting and worth seeing  

 

<a class="moz-txt-link-freetext" href="http://www.ted.com/index.php/talks/david_merrill_demos_siftables_the_smart_blocks.html">http://www.ted.com/index.php/talks/david_merrill_demos_siftables_the_smart_blocks.html</a>

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