Facebook produced US$2.68 billion in ad revenue in Q2, up 67 percent year over year, and mobile ads accounted for about 62 percent of that haul, totaling $1.66 billion. I was quoted in E-Commerce times about this. Here is what I said, “The ability of Facebook to move into the mobile ad space and to monetize it successfully was heavily questioned last year. The company answered in the best possible way — by simply beating market expectations.” You can read the full article here.