Ключевые слова: advertisement, business, chat, client, communication, company, computer, concept, contact, cyberspace, datum, digital, ebusiness, ecommerce, electronic, email, feedback, freelance, hand, inbox, information, internet, job, keyboard, letter, mail, marketing, media, message, mobile, network, newsletter, notebook, online, post, receive, screen, send, service, smart phone, smartphone, social, spam, symbol, technology, web, work, writing,