MSN Ads is leading in Top 10K Sites and Top 100K Sites.
Shopzilla has better usage coverage in more websites categories. Including Shopping, Arts & Entertainment, Business & Industry, Clothing and 79 other categories.
MSN Ads is leading in People & Society, News & Media, Computer & Electronics, Music & Audio and 50 other categories.
MSN Ads is leading in most countries, including India, Brazil, France, Mexico and 20 other countries.
Shopzilla is leading in United States, Canada, Germany, Malaysia and 16 other countries.