wingslevel - 11:57 pm on Apr 17, 2011 (gmt 0) [edited by: tedster at 12:27 am (utc) on Apr 18, 2011]
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By nature ecom sites are at risk for being viewed as "thin". There are necessarily lots of category type pages that exist only for directing the user toward their goal. Also, most ecom sites use at least some descriptive information provided by the manufacturer of the product.
The good news is most of us have few if any ads.
The sites that I work with were not affected by panda 1. But we have been hurt badly this week by panda 2.
The only ecom site I noticed in the searchmetric data was sears. They are listed as a winner. looking at their category pages, there wasn't any original content at all - just images, one phrase description, price and a link to the item page. our sites' category pages average about 100 words of unique content describing the products and differentiating characteristics.
We haven't had too many ecom sites share their experience with panda 1 or 2. Specifically, our panda 2 effect has been about a 12% loss in google organic referrals, but, worse, the conversion rate on that traffic has fallen by about 15% relative to long established benchmarks. Our rankings on easily tracked keywords don't seem to have suffered, and I am just getting ready for a long night digging into data, but, this seems to be telling me that long tail keywords have been significantly effected for us.
[edited by: tedster at 12:27 am (utc) on Apr 18, 2011]