Ключевые слова: abstract, background, business, button, coding, communication, computer, concept, connections, correspondence, desktop, digital, distributed, double, electronic, email, envelop, exposure, future, icon, information, internet, laptop, letter, mail, message, multi, network, occupation, office, online, portable, seminar, send, sketch, social, spam, stats, success, symbol, target, top, training, view, wall, web, website, working, writing,