topstar - 4:15 pm on May 24, 2012 (gmt 0)
I am seeing an interesting recovery in one niche I follow. A spammer who lost his network of sites in Penguin is coming back with brand new domains and - guess what - similar automatically generated backlinks as before. The links appear on pages with dates Apr 23 and 24 - the Penguin date. So it took less than a month for him to get back to page 1 for a big money keyword. Spammy backlinks still pass link juice.