Yahoo Ad Exchange
2,035 websites

Yahoo Ad Exchange is free to use

http://rightmedia.com/

Founded in 2003, Right Media is a Yahoo! company based in New York, with offices in London, Moscow, Eugene, San Francisco and Tallahassee. Right Media is the host of the Right Media Exchange, launched in 2005. The Right Media Exchange pl...

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Zedo
1,060 websites

Zedo is free to use

http://www.zedo.com

ZEDO is a leading global online ad platform with one of the best ad servers, high-impact ad formats with viewable impressions, and private exchange solutions.

Market Share by Top Websites

1 Yahoo Ad Exchange is leading in The Entire Web.

2 Zedo is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

Websites Categories

1 Yahoo Ad Exchange has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Arts & Entertainment, Games and 17 other categories.

2 Zedo is leading in Community & Society, News & Media and Home & Garden.

Geography

1 Yahoo Ad Exchange is leading in most countries, including United States, Japan, Russia, United Kingdom and 67 other countries.

2 Zedo is leading in India, Hong Kong, Egypt, Saudi Arabia and 10 other countries.