CNETWhy Twitter killed off Vine after a short-lived runCNETR.I.P., Vine, the world hardly knew you. Twitter. At least it lasted longer than six seconds. The popular micro-video platform that Twitter scooped up in 2012 is headed for an abrupt ending, as Vine announced it would be ending its app on Thursday morning.The Internet Is Heartbroken Over Vine Shutting DownFortuneApple launches accessibility websiteFast CompanyTwitter to discontinue Vine, cut 8 percent of its workforceSalonLos Angeles Times -New York Daily News -Huffington Post -Reutersall 207 news articles »