Centro
trend
944 websites

Centro is free to use

http://www.centro.net

Centro is a digital media services and technology company. Founded in 2001 and headquartered in Chicago with 17 offices nationwide, Centro serves over 350 agencies representing more than 1,100 advertisers. Centro’s commitment to culture, ...

VS

Giant Realm
trend
225 websites

Giant Realm is free to use

http://www.giantrealm.com/

Giant Realm exclusively represents advertising inventory on carefully selected web sites that appeal to the M18-34 demographic.

Market Share by Top Websites

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

Websites Categories

1 Centro has better usage coverage in more websites categories. Including News & Media, Business & Industry, Travel, Autos & Vehicles and 102 other categories.

2 Giant Realm is leading in Games, Video Games, Humor, Animation & Comics and one other category.

Geography

1 Centro is leading in most countries, including United States, Canada, United Kingdom, France and 29 other countries.

2 Giant Realm is leading in Ukraine, Dominican Republic and Poland.