Search engines and SEO spam
<p><pre><code>    Why not try writing a search engine specifically
    for some category dominated by SEO spam?
</code></pre>
I like to compare search engine results and wrote this tool to make it easy:<p><a href="https:&#x2F;&#x2F;www.gnod.com&#x2F;search" rel="nofollow">https:&#x2F;&#x2F;www.gnod.com&#x2F;search</a><p>There in fact are many vertical search engines. You can click on &quot;more engines&quot; to see the whole list.