Ключевые слова: abbreviation, advertisement, advertising, alphabet, business, communicate, communication, compare, comparison, computer, concept, content, copy space, creative, cube, design, different, education, elearning, idea, information, internet, letter, marketing, media, message, network, optimization, optimize, page, placement, plan, promotion, rank, ranking, search, service, sign, smo, social, strategy, success, symbol, technology, topic, versus, web, website, word,