Spark Studios is leading in Top 100K Sites.
WebTrends Ads has better usage coverage in more websites categories. Including Business & Industry, People & Society, Shopping, Religion & Spirituality and 21 other categories.
Spark Studios is leading in Arts & Entertainment, Antiques & Collectibles, Sports, Basketball and 15 other categories.
WebTrends Ads is leading in most countries, including United States, Indonesia, Canada, United Kingdom and 23 other countries.
Spark Studios is leading in Bulgaria and France.