To begin with, being a search engine is one of the most profitable ventures, Google's main strategies are advertising, Sponsored Links, Search results, AdWords, and AdSense among others. This website offers complementary information n this topic in a clear and concise manner. Google Money Strategy

Google is the king of internet marketing. They have proven that if you can generate a huge amount of traffic, you can make billions. Google has the most popular sites on the internet, and they place tiny ads on them. They continue to give stuff away free, because the get the money back from advertisers. And lots of it.

I know about advertisements, but how would it profit from its FireFox Browser for example, or is that just charity work for it.