@Rhonie: Thanks, but I entirely disagree with you about SEO only being for impulse buyers, and your solutions to this algo update. My e-commerce site/company has done (prior to this update) a very large amount of business through search. My family has lived off it for the last 6 years.
Sites that took a dive due to this update are not going to be brought back by putting an ad on Craigslist or setting up a YouTube channel (which we already have anyway). As I said, we've been featured in the mainstream media, magazines, etc. We're not a small operation.
My primary interest now is figuring our why quality sites that dropped did. What is it that Google did to devalue "content farms" and why did it effect so many e-commerce sites? Looking at my AWR projects in a variety of niches, it seems e-commerce sites were affected disproportionately. I'm not talking about low quality affiliate sites. Mine is a real business with unique, quality content, more relevant and with a far better user experience than MOST of the sites in the SERP.