YouTube, the world’s most popular video-viewing platform, sees 2 billion hits per day. Fortunately, the Google-owned company has figured out a few ways to monetize all of those video views.

From pre-roll — which Google CEO Eric Schmidt was originally “not a big fan of” — to promoted videos and its 10,000 brand partners, YouTube’s growth has helped Google shares soar. The site is monetizing more than 2 billion video views per week, and 70% of its traffic comes from outside the U.S. Now that mobile is exploding, so too is YouTube mobile — it’s the most-trafficked video-viewing mobile website, garnering 7.1 million unique visitors each month.

Source: The History of Advertising on YouTube