As an effort from google to secure the personalized search result, Google will now start to encrypte the search query forwarded from google when a user clicks a link in the search result. Google also states that this will only be done if the user is logged in with a Google Account. As a result of this the existing web analysis tools will no longer be able to read this query and know what the visistor search for to find your webpage. This will probably also affect Sitecores analysis tools (Sitecore DMS).
Today you can configure states that makes your website behave in a specific way based on what the user search for to find the website. With this new encryption, Sitecore will probably no longer be able to do this.
There are some rumors that Google are working on a new beta of Google Analytics, which will probably be able to decrypt these search queries and use. If this is true, we might have to use Google analytics to be able to see this information.