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, Health, Internet & Telecom and 80 other categories.
InsightExpress is leading in People & Society, Arts & Entertainment, News & Media, Fashion & Modeling and 40 other categories.
Yahoo Search Marketing Analytics is leading in most countries, including United States, Japan, Taiwan, Korea Republic and 27 other countries.
InsightExpress is leading in China, Canada, Russia, Czech Republic and 16 other countries.