Decibel Insight 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, Arts & Entertainment, Health and 52 other categories.
Decibel Insight is leading in Internet & Telecom, Travel, Marketing & Advertising, Software and 44 other categories.
Decibel Insight is leading in most countries, including United States, United Kingdom, France, Australia and 37 other countries.
Yahoo Search Marketing Analytics is leading in Japan, Taiwan, Korea Republic, Russia and 14 other countries.