In 2010, Google had $29.3 billion in revenue. To put things in perspective, this is more than the GDP of the 28 poorest countries… combined! Despite all of Google’s products and services, 97% of Google’s business revenue is still from advertising. Google has made a major push to capitalize on the growing use of mobile phones. $2,500,000,000 of Google’s ad revenue comes from mobile ads, which is supposed to double by the end of 2011.