freeXmedia is leading in Top 100K Sites and Top 1M Sites.
freeXmedia has better usage coverage in more websites categories. Including Arts & Entertainment, Sports, Autos & Vehicles, Shopping and 35 other categories.
WebTrends Ads is leading in Business & Industry, People & Society, Software, Law & Government and 12 other categories.
WebTrends Ads is leading in most countries, including United States, Canada, Argentina, Indonesia and 17 other countries.
freeXmedia is leading in Germany, Singapore and Switzerland.