Content farms. Link abusers. Spam sites.
All culprits preventing a great user search experience. And all culprits that Google has decided to go after. Because Google has admitted that their search experience had gone down. That they were wrongly ranking highly sites that shouldn’t be. Sites that have simply manipulated Google’s algorithms.
But Google has gone through, changed their algorithms and their ranking processes, as well as red-flagged certain manipulative sites by hand. And Matt Cutts, the head of Google’s webspam team claims that now, Google’s search quality is the best it has ever been in terms of “search relevance, freshness and competitiveness.”