Definition: a search engine used by hundreds of millions of people every day to locate information on the Internet. Google has developed a variety of technologies that continue to revolutionize the Internet, including PageRank, and advertising platforms such as AdSense and AdWords.

Definition: Google’s social network with over 100M users as of February 2012. A main component within Google+ is the circles feature where “friends” may be categorized into different groups, or circles, in order to share certain posts with different people.