OxaMedia is leading in Top 100K Sites.
OxaMedia has better usage coverage in more websites categories. Including People & Society, Business & Industry, Religion & Spirituality, Movies and 4 other categories.
Simple AdServer is leading in Computer & Electronics, Web Hosting, Shopping, Adult and 4 other categories.
OxaMedia is leading in most countries, including United States and Greece.
Simple AdServer is leading in Hungary.