From the guidelines:<p><pre><code>  &#62; Please submit the original source. If a blog post
  &#62; reports on something they found on another site,
  &#62; submit the latter.
</code></pre>
Here's the actual item, rather than the reddit submission:<p><a href="http://asserttrue.blogspot.com/2010/02/voronoi-tessellation-in-linear-time.html" rel="nofollow">http://asserttrue.blogspot.com/2010/02/voronoi-tessellation-...</a>