IndieClick is leading in Top 100K Sites and Top 1M Sites.
IndieClick has better usage coverage in more websites categories. Including Arts & Entertainment, Music & Audio, People & Society, Shopping and 33 other categories.
OpenX OpenAds is leading in Sports, Religion & Spirituality, Technology News, Games and 11 other categories.
IndieClick is leading in most countries, including United States, Russia, Great Britain, Germany and 37 other countries.
OpenX OpenAds is leading in Spain, British Indian Ocean Territory, Poland, Trinidad And Tobago and 2 other countries.