DoubleClick AdExchange is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
OMG has better usage coverage in more websites categories. Including Shopping, Coupons, Business & Industry, Arts & Entertainment and 82 other categories.
DoubleClick AdExchange is leading in News & Media, Sports, Autos & Vehicles, Health and 21 other categories.
OMG is leading in most countries, including India, United Kingdom, Indonesia, Singapore and 28 other countries.
DoubleClick AdExchange is leading in United States, Germany, China, Turkey and 23 other countries.