The data describes a ranking of the ten most valuable U.S.-based internet companies by market capitalization. As of June 2018, Alphabet's market capitalization was 793 billion USD. First-ranked retail platform Amazon had a market cap of 823 billion USD.
Internet companies generate their revenue through various means. Google, for instance, makes use of its advertisement services such as Google AdWords – which takes advantage of Google searches and appear as small advertisements next to search results – and Google AdSense which generates advertisements based on a user’s search history and location, among others.
