Yahoo Search Marketing Analytics is leading in Top 100K Sites and Top 1M Sites.
Yahoo Search Marketing Analytics has better usage coverage in more websites categories. Including Business & Industry, Shopping, Internet & Telecom, Health and 70 other categories.
YellowTracker is leading in Arts & Entertainment, People & Society, News & Media, Music & Audio and 37 other categories.
Yahoo Search Marketing Analytics is leading in most countries, including United States, Japan, Korea Republic, Taiwan and 28 other countries.
YellowTracker is leading in Netherlands, Belgium, Russia, Czech Republic and 9 other countries.