Matt addressed 10 points, all summarized at the end as helping improve the search results by awarding the good sites and hurting the spammers and black hats in the search results. Here are the 10 points Matt addressed in his video, followed by the video itself:

Penguin: The next generation Penguin update, Penguin 4 (AKA Penguin 2.0), which is expected to launch in the next few weeks, will go deeper and have more of an impact than the first version of that Penguin update. So expect that we will hear more of an outcry from the SEO community when this does launch.

Advertorials: Earlier this year, Google went after some web sites for using advertorials as a means to artificially inflate their link profile. Matt Cutts said Google will soon take a stronger stance against those using advertorials in a means that violates their webmaster guidelines.