Contextual advertising
Implementing analytics for contextual advertising in helps track payback and optimize budgets.
Google AdWords
Keyword analysis for contextual advertising by helps to increase CTR and reduce customer acquisition costs.

Yahoo ads
Yahoo Ads audit helps to identify campaign weaknesses and increase their profitability.
Yandex Direct
Optimization advertising in Yandex Direct от rcm2014 в Changtoushang allows you to reduce the cost per click and increase the effectiveness of campaigns.