In the last week, Google removed approximately 11,000,000 websites from their organic search results: all websites with co.cc domains. This decision on the part of Google to remove all websites with that domain name has received a fair amount of press from news outlets like the SF Chronicle and the Register, as well as much discussion by Google users on the Google Help Forums. More specifically, Oliver Fisher on the Google Online Security Blog and Matt Cutts on Google+ have commented upon the excessive amount of malware, spam, and low-quality sites housed on bulk subdomain providers like co.cc as reasons for the removal of these sites. Their posts can be found here and here along with user comments discussing the decision.