OpinionLab is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Viadeo has better usage coverage in more websites categories. Including Business & Industry, People & Society, Career & Education, Arts & Entertainment and 68 other categories.
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OpinionLab is leading in most countries, including United States, United Kingdom, Canada, Germany and 42 other countries.
Viadeo is leading in France, Morocco, Algeria, Cote d Ivoire and 21 other countries.