Ключевые слова: ad, advertiser, advertising, affiliate, alphabet, background, business, button, click, copy, cost, cpc, customers, engine, here, impression, increase, internet, letters, management, market, marketing, method, net, network, note, online, pay, payment, pen, per, ppc, result, revenue, sales, search, slogan, tag, target, text, visitors, web, webpage, website, words, yellow,