Contextual advertising
Implementing analytics for contextual advertising in helps track payback and optimize budgets.

Yahoo ads
Monitoring Yahoo Ads в Gammasa helps to adjust the promotion strategy and increase the return on investment.
Yandex Direct
The audit of Yandex Direct identifies weaknesses, optimizes ads and increases the return on advertising.
Google AdWords
Keyword analysis for contextual advertising by helps to increase CTR and reduce customer acquisition costs.