While click-through rates do lead to daily swings in your SERPs, and it is a fact that
manipulation can and does occur (black hat style) in click ratios for many sites, I would like
to note the importance of
website accessibility in regards to click-through - and how it
comes into play with SERPs.
The new feature Google has implemented in it's tools area,
sitelinks, according to their own
documentation:
Quote:
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...If your site's structure doesn't allow our algorithms to find good sitelinks, or we don't think that the sitelinks are relevant to the user's query, we won't show them...
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Note the first part of their statement. "
If your site's structure doesn't allow..." My point is
that if you do not use semantically correct markup, which is the first part of accessifying a
website, not only will you have an UN-optimized UI (and cost you money. Have you been
following the Target.com lawsuit?), but your site will
also suffer - even if it's the slightest
bit - with the ease of a SE (Google used here as an example) to crawl and gain all the
information it typically uses to "rank" you.
Hope I didn't deviate too much, but I feel that accessibility is a valuable issue in regards
to
SEO. I think the worlds of semantic HTML (which is the foundation for accessibility in
my eyes) and
SEO are closer related than most people think. Just think of all the click-through
you'll get with an accessible web design...