Hi Guys! I have checked couple of main threads here on Penguin 3.0. Seems like this Google bird mainly hits spam link promoted sites. But is there really no significant effect noticed for sites where only high quality links were used? Our company is doing high quality link building for many customers so we would receive alerts from them if something serious went wrong with their money sites. But we didn't receive even a single complain so far... We plan to send an e-mail newsletter to all customers to gather some feedback and maybe some case studies, but it will take some time to do that... I hope this thread will do this faster. So if somebody who uses only high quality backlinks (not from PBNs) have noticed some negative SERP movements after October 17th please let me know! Really need to know what this new algorithm can do to grey hat sites!