Originally Posted by Angry Jew Cat

Whatever they have modified in the algorithm they seem to be targeting large content farms with a high percentage of thin content. The larger the site, the more they seem to be feeling it. I suspect the negative effects are attributed to the authority of the domain itself. While it might affect adult splogs running solely sponsor feeds, I don't think the effect will be felt quite as hard, as most of these sites didn't pack a whole lot of authority in the spider's eyes already, whereas some of these gigantic mainstream content farms carried a lot of authority. Previously on low competition terms you could slap an article up, toss it a couple backlinks and rank first page easily just riding the domain's authority. Those days are clearly done. This is all just speculation on my part of course. I still don't think adult webmasters have quite as much to worry about here though.