Mercent is leading in Top 100K Sites and Top 1M Sites.
Quigo AdSonar has better usage coverage in more websites categories. Including People & Society, News & Media, Arts & Entertainment, Business & Industry and 83 other categories.
Mercent is leading in Shopping, Clothing, Home & Garden, Games and 39 other categories.
Quigo AdSonar is leading in most countries, including United Kingdom, Spain, Russia, France and 40 other countries.
Mercent is leading in United States, Ukraine, Iraq, Austria and 28 other countries.