Contrary to the popular belief that this was 'war against Demand Media', their main site, eHow seems to have gained from the update!
EZineArticles, AssociatedContent, Suite101, HubPages and Buzzle seems to have had the highest hit in rankings.
The numbers are fascinating, and you can read more in-depth analysis here:
Number Crunchers: Who Lost In Google’s “Farmer” Algorithm Change?
How Demand Media Used PR Spin to Have Google Kill Their Competitors
So far it's hard to build a link between what's 'shallow' and what's quality content. What are your thoughts?