This extension attempts to address the problem of StackOverflow clone sites - such as efreedom, comanswer and phpfile.org) appearing above original StackOverflow answers in google.
As well as being clones of the original information, these sites strip original author information and a number of other SO features, as well as covering the page in ads for their own benefit.
Landing on a page on one of the clone sites will result in automatic redirection to the original source on StackOverflow.
Original idea by Peter Steinberger (http://petersteinberger.com), who built the Chrome extension at https://github.com/steipete/stackoverflowerizer
Sites currently supported are: