Quigo AdSonar
67 websites

Quigo AdSonar is free to use

http://www.quigo.com/

Contextual advertising owned by AOL and Quigo.

VS

Spring Engage
76 websites

Spring Engage costs money

http://www.springmetrics.com/

Spring Metrics solutions increase revenue for online merchants through automated, real-time customer interaction at the point of customer conversion. Based on behavioral targeting of site visitors, Smart Offers from Spring Metrics increa...

Market Share by Top Websites

1 Spring Engage is leading in Top 1M Sites.

2 Quigo AdSonar is leading in Top 100K Sites.

Websites Categories

1 Spring Engage has better usage coverage in more websites categories. Including Home & Garden, Vehicles, Finance, Health and 6 other categories.

2 Quigo AdSonar is leading in News & Media, Community & Society, Computers Electronics & Technology, Arts & Entertainment and 4 other categories.

Geography

1 Spring Engage is leading in most countries, including United States, United Kingdom, South Africa, Australia and 4 other countries.

2 Spring Engage is leading in United States, United Kingdom, South Africa, Australia and 4 other countries.