It is ridiculous the amount of users that watch YouTube on a daily basis. And YouTube plans to leverage even more users with a new messaging service that will reassure viewers that they'll never need to leave the app just to share a video. This is a smart move on YouTube's end as all of its videos are currently being shared with other social networks like Facebook, Twitter, or Tumblr. YouTube is losing out on valuable airtime to these other networks so the video giant would love to keep you within its virtual app borders. So, imagine if YouTube (eventually) had its own social network which...
Source: http://www.gsmarena.com/youtube_is_testing_a_messenger_so_you_never_have_to_leave_the_app_to_share_a_video-news-18204.php