Apologies if already posted, although I don't think it has been: eZineArticle's response to this algo change and - after analysing its effects a bit - what they're doing to change things:
Might contain some useful information since they're one of the big sites to get hit a fair bit by the Google update.
Two of the big changes for people who use EZA is they'll be raising the minimum word count, and they're going completely no-follow (which itself will knock some sites since I know some - albeit unwise - marketers who rely solely on EZA to get exposure and backlinks).
Fair play to Google - whilst there are a bunch of false positives which need sorting ASAP IMO, I didn't think that Google would come along and truly sort out the increasing mess with low quality content farms that we've been seeing recently.
It does look as though they're serious about the issue, and I still think there's other big algo changes (relating to backlinks) to come.
All-in-all, if/when Google sort out the false positives, this could be quite a good thing for the web.