Ad Butler is leading in Top 100K Sites and Top 1M Sites.
Ad Butler has better usage coverage in more websites categories. Including Business & Industry, News & Media, Arts & Entertainment, Sports and 104 other categories.
PubExchange is leading in Clothing, Magazines & E-Zines, Nursery & Playroom, Home & Garden and 14 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, India and 72 other countries.
PubExchange is leading in Poland, Macedonia, Qatar and Sri Lanka.