Google has not disclosed the amount of revenue generated to date via advertising around the video-sharing site, which it acquired for $1.65bn (£834m) in October 2006. It has struck numerous partnerships with third-party content providers and advertisers aimed at monetising YouTube's vast online audience.
Schmidt said: "We believe the best products are coming out this year. And they're new products. They're not announced. They're not just putting in-line ads in the things that people are trying."