Ключевые слова: background, business, businessman, communication, computer, concept, connection, contact, digital, email, emails, envelope, finger, global, hand, icon, idea, internet, keyboard, laptop, letter, mail, mailing, marketing, media, message, modern, network, notebook, online, pc, phone, post, screen, send, sending, service, smart, social, spam, symbol, technology, text, touch, web, work,