MSN Ads is leading in Top 100K Sites.
Shopzilla has better usage coverage in more websites categories. Including Shopping, Arts & Entertainment, Business & Industry, Clothing and 84 other categories.
MSN Ads is leading in People & Society, News & Media, Computer & Electronics, Music & Audio and 54 other categories.
MSN Ads is leading in most countries, including Canada, India, Brazil, United Kingdom and 36 other countries.
Shopzilla is leading in United States, Australia, Israel, Ireland and 22 other countries.