1World Online is leading in Top 100K Sites and Top 1M Sites.
Zimbio has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Music & Audio, Business & Industry and 45 other categories.
1World Online is leading in News & Media, Shopping, Health, Sports and 15 other categories.
Zimbio is leading in most countries, including United States, Brazil, Spain, Sweden and 27 other countries.
1World Online is leading in India, Ukraine, Mexico, Venezuela and 7 other countries.