Merchenta is leading in Top 1M Sites.
Merchenta has better usage coverage in more websites categories. Including Shopping, Home & Garden, Business & Industry, Health and 9 other categories.
Simple AdServer is leading in Computer & Electronics, Software, Sports, Adult and one other category.
Merchenta is leading in most countries, including United Kingdom, United States, France, Hong Kong and 13 other countries.
Simple AdServer is leading in Canada.