Last week Google announced that it will begin to follow your activities across all of its websites, such as YouTube and Gmail, as well as its search engine. Although Google has been collecting some of this information from its various services, for the first time they are going to pull all of the data together, to paint a more complete picture of each user.
These changes are set to take effect on March 1, 2012, and you won’t be able to opt out. Google wants to match their ads to what people like and enjoy. For example, if someone watches a baseball clip online, and lives in Seattle, Google might display an ad for Mariners tickets on their Gmail account.
Additionally, by collecting more data about each user, Google intends to be able to serve better search results. With the additional data, when someone searches for “salsa”, with the additional data, Google will have a better idea if they are seeking information about dancing, or dinner.
Watch this brief video for an explanation for their new policy changes.