HitTail
668 websites

HitTail offers both free and paid options

http://www.hittail.com/

HitTail is a search intelligence product that reveals in real-time the under performing, most promising keywords hidden in the long tail of natural search results. These terms are presented as suggestions that can boost the natural search r...

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Optimax Media Delivery
26 websites

Optimax Media Delivery is free to use

http://optmd.com/

OPTIMAX Media Delivery ... We are also one of the few ad servers that labels the ads we deliver in a way that makes it easy for consumers to find and contact us.

Market Share by Top Websites

1 HitTail is leading in Top 1M Sites and The Entire Web.

2 In terms of market share, Optimax Media Delivery is clearly lagging behind, losing to HitTail in all segments.

Websites Categories

1 HitTail has better usage coverage in more websites categories. Including Business & Consumer Services, Computers Electronics & Technology, Community & Society, Finance and 20 other categories.

2 Optimax Media Delivery hasn't got a lead over HitTail in any websites category.

Geography

1 HitTail is leading in most countries, including United States, India, United Kingdom, Italy and 57 other countries.

2 Optimax Media Delivery is leading in South Africa.