Ключевые слова: ad, advertisement, advise, announce, announcement, big data, blank, bubble, chat, cloud, comment, communication, concept, content, conversation, copyspace, dialog, dialog bubble, empty, hands, holding, icon, ideas, internet, marketing, message, notification, online, opinion, paper, quote, recommend, shape, showing, social media, social network, social networking, speaking, speech, speech bubble, symbol, talking, thinking, two, voice, web, website, white,