AdBrite
700 websites

AdBrite is free to use

http://adbrite.com

AdBrite labels itself as the internet's ad marketplace. It provides interstitials and banner ads on a cost per mille (thousand) basis, and text ads on either cost per click or cost per action.

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AdvertServe
889 websites

AdvertServe offers both free and paid options

http://www.advertserve.com/

AdvertServe is a complete ad serving solution for advertisers, publishers and networks. Precisely target ads to your audience to optimize inventory usage and increase profits. Review detailed statistics reports in real-time with our web-bas...

Market Share by Top Websites

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

2 In terms of market share, AdBrite is clearly lagging behind, losing to AdvertServe in all segments.

Websites Categories

1 AdvertServe has better usage coverage in more websites categories. Including Arts & Entertainment, Sports, News & Media, Health and 14 other categories.

2 AdBrite is leading in Computers Electronics & Technology, Adult, Games and Reference Materials.

Geography

1 AdBrite is leading in most countries, including India, Philippines, Indonesia, Netherlands and 48 other countries.

2 AdvertServe is leading in United States, Germany, Russia, United Kingdom and 25 other countries.