===What the timeline is still missing===
* https://techcrunchNothing identified right now.com/2018/07/18/reddit-chat-rooms/ ✔* launch of things like Imgur✔ and Giphy✔ and other sites that dominate reddit shares [http://www.randalolson.com/2015/01/11/a-data-driven-guide-to-creating-successful-reddit-posts-redux/]* https://www.reddit.com/dev/api '''?'''* more about competition for reddit, e.g. StumbleUpon✔, Digg✔, 4chan✔
===Timeline update strategy===
