Google will start using stricter rules for showing reviews in search results. From now on, the reviews that only appear on a company's website will be ignored.
There can already be observed a drop in numbers of reviews shown on Google search results.
Google announced that the interpretation of nofollow links will be changed. Before, nofollow links were completely ignored and did not bring any value to a website's rank. Now, Google will decide whether or not a nofollow link should add some extra points to the ranking.
Two extra attributes for user-generated content and sponsored content will were also introduced.