Ключевые слова: background, business, communication, computer, concept, contact, cyberspace, delivering, digital, electronic, envelope, graphic, hand, icon, illustration, keyboard, letter, logotype, mail, marketing, media, message, modern, net, network, new, newsletter, notebook, online, pictogram, post, postal, receiving, scam, screen, send, service, signs, social, spam, symbol, technology, web, white, work,