Ключевые слова: 3d, address, answer, blue, character, communication, computer, concept, contact, correspondence, e mail, email, envelope, gold, golden, information, inside, internet, isolated, letter, mail, mailing, mark, message, modern, network, new, newsletters, object, online, open, paper, post, postage, postal, postcard, receive, send, sign, single, symbol, technology, web, website, www, yellow,