Ключевые слова: ad, advertiser, advertising, affiliate, analysis, business, click, communication, concept, content, cost, cpc, customers, digital, engine, here, impression, increase, internet, management, market, marketing, media, method, net, network, online, optimization, paid, pay, payment, pen, per, ppc, promotion, result, revenue, sales, search, slogan, strategy, tag, target, text, visitors, web, webpage, website, words, yellow,