Ключевые слова: ad, advertisement, advertiser, advertising, affiliate, business, businessman, click, content, conversion, ctr, data, digital, ebusiness, ecommerce, emarketing, impression, information, internet, keyword, man, management, marketing, media, money, network, online, optimization, pay, payment, per, ppc, rate, referral, revenue, sale, search, seo, social, strategy, target, technology, through, traffic, viral, visitor, walking, web, website,