I used to be #1 and #2 for my KW's locally. My competitor, who created their site a month ago, is blatantly keyword stuffing on their site (their background is black and they have lots of black text hidden on their pages) and are also abusing backlinks (spamming links back and forth from their website and their Facebook page). I noticed it awhile ago but didn't worry about it too much because I figured they would be penalized by Google. However, as of this week, I was bumped down and their site is now ranking above mine. What should I do? What are the quickest fixes? Or should I wait it out because they will be penalized after the next update? Thank you!