Google has started its enforcement of the new site reputation abuse policy by deranking or deindexing portions of websites from the Google Search index. This seems to have launched in the past hour or so, where sites as large as CNN, USA Today, Fortune, and LA Times are seeing their coupon directories no longer ranking for coupon-related keyword phrases. We were expecting the enforcement to begin this week, we posted a reminder last week. Google told us this change was coming in March, when Goo...