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, Arts & Entertainment, Business & Industry and 95 other categories.
DoubleClick AdExchange is leading in TV & Video, Newspapers, Soccer, Social Sciences and one other category.
OMG is leading in most countries, including India, United Kingdom, Poland, Singapore and 33 other countries.
DoubleClick AdExchange is leading in United States, China, Turkey, Canada and 12 other countries.