TruEffect is leading in Top 100K Sites.
Yahoo Search Marketing Analytics has better usage coverage in more websites categories. Including Business & Industry, Shopping, Arts & Entertainment, Health and 81 other categories.
TruEffect is leading in News & Media, TV & Video, Transportation & Logistics, Airlines & Airports and 7 other categories.
Yahoo Search Marketing Analytics is leading in most countries, including Japan, United States, Taiwan, South Korea and 36 other countries.
TruEffect is leading in Benin, Denmark, Greece, Guam and 4 other countries.