Open AdExchange
8 websites

Open AdExchange is free to use

http://www.openadex.com/

New Danish website is now live: openadexchange.dk ... Targeted ads from Open AdExchange will provide you with additional earnings on top of your existing ...

VS

Vocus
25 websites

Vocus costs money

http://www.cision.com

ocus provides public relations services to businesses, using a cloud-based, or software as a service (SaaS) model. The company helps businesses maximize their PR efforts through social media monitoring and engagement and media publicity ser...

Market Share by Top Websites

1 Vocus is leading in Top 100K Sites.

2 In terms of market share, Open AdExchange is clearly lagging behind, losing to Vocus in all segments.

Websites Categories

1 Vocus has better usage coverage in more websites categories. Including Law & Government, Science & Education, Business & Consumer Services, Food & Drink and 3 other categories.

2 Open AdExchange is leading in Arts & Entertainment, Finance, Home & Garden and Jobs & Career.

Geography

1 Vocus is leading in most countries, including United States, Canada, Austria, Colombia and 2 other countries.

2 Open AdExchange is leading in Denmark, Pakistan and Sweden.