A reader wrote to me wondering:
"Do multiple positive comments on a website produce higher google ranks? It has occurred to me that someone - the same person judging from the similarity of the comments - posts positive comments around your site and I'm wondering if this is an extraordinarily enthusiastic person or what?"
The answer is no. Let's say that a page was about "sudo".
If someone added a comment saying "this article helps me understand sudo", yes, the additional use of "sudo" could help Google recognize that page as being about "sudo". But so would "This is the dumbest explanation of sudo I have ever seen". In neither case would that affect Page Rank very much, in fact probably not at all; see https://www.google.com/corporate/tech.html
Google Page Rank is mostly about who links to you, both in terms of quantity (how many other sites link to your page) and quality (is the site that links to you linked to by other pages). Originally, quantity had more value than it has now; the advent of "link farms" (pointless pages having nothing but links) caused that value to decrease somewhat.. though Google does not tell anyone how they do this, I'd bet their software now has some ability to recognize link farms.
One "trick" that apparently has worked in the past is to register a bunch of domains, and put up near junk content that links back to your main site. That's much harder for Google to identify, of course, but that's where the "quality" does help - those "junk" sites aren't likely to attract any attention from sites that already have strong Page Rank. I would also suspect that it wouldn't be too hard for an algorithm to notice incestuous sites like this.. and it may be that Page Rank already takes that into its consideration.
But all of this is just speculation. Google holds those cards very close to its chest.
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More Articles by Tony Lawrence © 2009-11-07 Tony Lawrence