In 2019, the majority of the company's 160.7 billion U.S. dollar revenues came from advertising through Google Sites or Google Network Sites – in 2019, Google Sites advertising revenue amounted to 113.26 billion U.S. dollars. The annual advertising revenue of Google network websites reached almost 21.6 billion U.S. dollars. Google’s quarterly revenue shows an overall growth from the 36.17 billion U.S. dollars in first quarter of 2019 to 45.8 billion U.S. dollars in fourth quarter of 2019.
There are many localized version of the Google Search available. Among the leading search engines, the worldwide market share of Google in October 2019 was almost 88 percent. Although Google’s product originally was based upon online search, the company has significantly broadened its services throughout the years. Video content sharing site YouTube was one of Google’s most prolific and expensive acquisitions and has been heavily integrated into Google’s online presence, its worldwide ubiquity changing the dynamics of user generated content and online video curation. YouTube is popular among all age groups and the most popular YouTube partner channel in the United States in November 2019 was UMG@YouTube with 41.6 million unique users.
Apart from online search, advertising and online video, Google has branched out into further content, most notably the Android mobile operating system which as of December 2019 accounted for over 74 percent of the global smartphone operating system market. Content for Android devices can be purchased via the Google Play Store, a digital application distribution platform through which more than 2.9 million apps were made available as of December 2019. The most popular Android apps in the United States include Google products such as Search, Google Mail, YouTube and Google Maps.
Google has a wide range of products, including but not limited to the Chrome browser and operating system ChromeOS, hardware including the Chromecast and company's series of mobile devices such as the Nexus and Pixel devices, as well as online payment system Google Pay. Recently, Google has been making inroads in the virtual assistant market by releasing Google Now and Google Assistant. The company is currently investing in voice-controlled smart-home speakers and devices such as its Google Home series. With the growth of voice search and increasing usage of digital assistants, this is hardly a surprising move.