Content_ed - 2:26 pm on Nov 28, 2011 (gmt 0)
The large sites on the Alexa list were much more likely to have recovered than the small sites.
Over the past month or so I've put a huge dent into the scrapers, autobloggers, and most importantly, stolen and then syndicated pages from my site, that had filled up Google's index. In many cases, Google reported well into five figures of full or partial copies of my more popular pages. Feel free to contact me if you want me to look at your site and see if I can suggest anything, just curiosity, I don't sell services:-)
You'd be surprised how fast (relatively speaking) you can clear scrapers out of Google if you use their DMCA Dashboard and fill each complaint with URLs. But keep in mind that getting the URLs removed from the results DOESN"T get them removed from Google's index, unless they are Google URLs, like Blogger. To really clean up, it's much more effective to keep a seperate list of Adsense infringing URLs for each page of your's as you go, and DMCA Adsense in a single batch. The Adsense DMCAs are highly effective at getting the sites to remove the pages from the web because they don't want to get kicked out of Adsense.
And if you're in a big hurry to get the removed pages deindexed, you can also file them with WT URL removal tool (not the one in the crawl errors section). As long as they comes back 404, Google will remove them, but if they've been replaced by an empty template, you're stuck waiting.