FredHopper 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, Health and 93 other categories.
FredHopper is leading in Clothing, General Merchandise, Automotive Industry, Food & Grocery Retailers and one other category.
Yahoo Search Marketing Analytics is leading in most countries, including United States, Japan, Taiwan, Korea Republic and 28 other countries.
FredHopper is leading in France, Netherlands, United Kingdom, Germany and 20 other countries.