Well, you can read about that here :
<a href="http://www.skrenta.com/2008/01/why_search.html" rel="nofollow">http://www.skrenta.com/2008/01/why_search.html</a>
and here :
<a href="http://www.skrenta.com/2008/01/about_the_name_blekko.html" rel="nofollow">http://www.skrenta.com/2008/01/about_the_name_blekko.html</a>
What's Blekko? The name not only doesn't mean anything but sounds like the sound of disgust "Blech", and blekko.com doesn't point to anything interesting.<p>That said, their server setup is pretty nifty.