Don't believe me? Try a search for 'search engine' on ... Google.
That's right, it returns Google as the 7th result and the 6th search engine. And look at the snippet! Would it kill Google to craft a decent meta description?
In some ways it's nice to see that Google isn't optimizing and hasn't manually altered the results in their favor. Yet, 'search engine' seems like a valuable term.
That's over 4 million global monthly searches! Even on exact match you get nearly 400,000.
Yahoo seems to get it, putting themselves at the top of a 'search engine' query on Yahoo. I'm guessing that's a non-algorithmic result. Sure it seems like a blatant promotion but I understand the reasoning.
Nevermind the oddity of searching for a search engine with a search engine. Search is Google's business and, as such, it should want to be the top result for the term.
Even from a search quality perspective, are those the best results for the term 'search engine'?