Market Share by Top Websites

1 Mediaplex is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 Despite its recent growth, Ad Butler is still behind Mediaplex in all market share segments.

Websites Categories

1 Mediaplex has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Business & Industry, Shopping and 216 other categories.

2 Ad Butler is leading in Magazines & E-Zines, College & University Press, Environment, Camps and 3 other categories.

Geography

1 Mediaplex is leading in most countries, including United States, United Kingdom, Germany, France and 125 other countries.

2 Ad Butler is leading in Belarus, Dominican Republic, Faroe Islands, Cameroon and 4 other countries.