Google Parked Domain Classifier Error Blamed for Lost Search Rankings

Several websites vanished from Google?s index earlier this week. It wasn?t the much rumored over-optimization boogeyman. Rather, it was a bug involving Google?s classifier for parked domains, as Matt Cutts explained and apologized for on Google+.

Source: http://feedproxy.google.com/~r/sewblog/~3/YLVg8m2NT74/Google-Parked-Domain-Classifier-Error-Blamed-for-Lost-Search-Rankings

more info here more info here more info here more info here more info here more info here more info here