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, Travel and 95 other categories.
DoubleClick AdExchange is leading in TV & Video, Sports, Newspapers, Soccer and 3 other categories.
OMG is leading in most countries, including India, United Kingdom, Russia, Australia and 29 other countries.
DoubleClick AdExchange is leading in United States, China, Turkey, Germany and 17 other countries.