Live streaming refers to online streaming media simultaneously recorded and broadcast in real time to the viewer. It is often simply referred to as streaming.Live stream services encompass a wide variety of topics, from social media to video games. Apps such as Facebook Live, Periscope, and 17 include the streaming of scheduled promotions and celebrity events as well as streaming between users. Sites such as Twitch.tv have become popular outlets for watching people play video games, such as in eSports, Let’s Play-style gaming, or speedrunning. Lifecasting or lifestreaming is a real-life activity facilitated by live streaming.User interaction via chat rooms forms a major component of live streaming. Facebook Live and Periscope also include the ability to talk to the broadcaster or participate in conversations in chat.