Ключевые слова: abstract, accept, approve, background, binary, blog, button, chat, comment, communicate, communication, community, concept, confirm, confirmation, confirmed, cursor, data, digital, fan, finger, follow, friend, hand, icon, image0557, information, internet, like, media, message, messaging, microblog, net, network, rate, recommend, sign, social, society, software, symbol, technology, thumb, tweet, up, vote, web, website, www,