InsightExpress is leading in Top 10K Sites, 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.
InsightExpress is leading in People & Society, Arts & Entertainment, News & Media, Music & Audio and 46 other categories.
Yahoo Search Marketing Analytics is leading in most countries, including United States, Japan, Taiwan, Korea Republic and 25 other countries.
InsightExpress is leading in China, Poland, France, Czech Republic and 18 other countries.