Google is a "Famous web search engine".it is a Commercial.
Most services Google provides are free it mean that the user does not have to pay money to use them.
The biggest and most popular Google service is the web search. Google’s web search engine is well known for providing relevant search results with a clean interface. Google is the largest and most popular web search engine in the world.
Google Search Engine is the best search engine in the world and it is also one of most popular product from Google.