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.

VS

Silverpop
352 websites

Silverpop costs money

http://www.silverpop.com

Silverpop is the only marketing technology provider with expertise in email marketing and marketing automation. In today's customer-driven marketplace, one in which marketers must reach their target audience more often, via more channels an...

Market Share by Top Websites

1 Silverpop 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 Silverpop in all segments.

Websites Categories

1 Silverpop has better usage coverage in more websites categories. Including Finance, Travel & Tourism, Community & Society, Business & Consumer Services and 8 other categories.

2 AdBrite is leading in Computers Electronics & Technology, Arts & Entertainment, Adult, Science & Education and 7 other categories.

Geography

1 AdBrite is leading in most countries, including India, United Kingdom, Philippines, Canada and 60 other countries.

2 Silverpop is leading in Mexico, Australia, Czech Republic, Turkey and 10 other countries.