Ключевые слова: advertising, background, blog, business, chart, click, client, communication, concept, customer, design, designer, development, digital, ebusiness, ecommerce, email, emarketing, engine, graph, internet, list, marker, market, marketing, media, mobile, network, note, notebook, online, optimization, page, paper, pay, per, roi, schedule, search, seo, sheet, social, strategy, success, target, text, web, website, word,