This chart shows Google’s $15 billion transformation over the past 10 years (GOOG, GOOGL)

Google knows that one day ad sales will max out and growth will slow. The company is preparing for the day by diversifying its businessesStatista, a research firm that provides market and consumer data,  tracked Google's revenues derived from non-advertising businesses and built a chart to show where they fall as a percentage of Google's overall sales.The tally from all those side bets, and moonshots and ventures outside of the core competency may surprise you.   Google's onl