Eulerian is leading in Top 10K Sites and Top 100K Sites.
Yahoo Search Marketing Analytics has better usage coverage in more websites categories. Including Business & Industry, Shopping, Internet & Telecom, Arts & Entertainment and 86 other categories.
Eulerian is leading in Finance, Financial Management, People & Society, Tourism and 15 other categories.
Yahoo Search Marketing Analytics is leading in most countries, including United States, Japan, South Korea, Taiwan and 26 other countries.
Eulerian is leading in France, Great Britain, Netherlands, Italy and 14 other countries.