AdBuyer.com is leading in Top 100K Sites and Top 1M Sites.
AdBuyer.com has better usage coverage in more websites categories. Including Business & Industry, Shopping, Career & Education, Arts & Entertainment and 62 other categories.
Spark Studios is leading in Humor, Photography, Weight Loss, Graphics & Multimedia Tools and 3 other categories.
AdBuyer.com is leading in most countries, including United States, Israel, United Kingdom, Canada and 16 other countries.
Spark Studios is leading in Bulgaria, France, Argentina and Russia.