NB The following is a community-generated list of web pages that display Stack Exchange content and rank higher in search results than the original SE posts they copy. It is no longer being maintained, because the procedure for reporting such sites has changed; see the duplicate for more information.
For the original instructions, see this question's revision historyrevision history. You may also be looking for the post for reporting sites that use Stack Exchange content illegally (that is, without following attribution guidelines).