Could a better data aggregator, one that indexes community intelligence as easily it does the Web, kill Google (NASDAQ:GOOG)? Some of you think so.

I'm not so sure. Even if DoubleGoo at times resembles a Greek tragedy waiting to happen, it's much more like the best company I've ever seen. How else do you explain that, just a few months after launch, would-be Google killer Cuil (pronounced "cool") is struggling to survive?

Blogger TechCrunch's recent study of Cuil's traffic patterns found that the site has flatlined since launch. Web tracker Alexa ranks Cuil 9,505. Google is second. The Motley Fool is ranked 1,313. Cuil, in other words, isn't cool at all.

You aren't really surprised, are you? You've seen Google's share of October 2008 searches:

Search Engine

Market Share

YOY Gain/(Loss)

Google

61.2%

8.1%

Yahoo!

16.9%

(12.0%)

MSN/Windows Live

11.4%

(19.0%)

AOL

4.3%

14.5%

Ask.com

2.3%

(22.9%)

Source: Nielsen Online MegaView Search.

Google dominates search like Microsoft (NASDAQ:MSFT) dominates PC operating systems. That's a minor problem for Time Warner (NYSE:TWX) and IAC (NASDAQ:IACI), operators of AOL and Ask.com, since they're diversified. Yahoo! (NASDAQ:YHOO) isn't. It's only a matter of time before a suitor pays enough to take the company off life support. Cuil, which lost its vice president of products in September, could be facing the same.

Cuil is dead. Long live Google.

Why not put this argument to rest for good, Larry and Sergey? Once you've killed Cuil, cut off Kosmix.com at the knees by acquiring the seemingly recession-proof Twitter and then embracing and extending its social search engine into your own. I guarantee it'll cost less than the $14.4 billion you've in the bank.

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This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.