Tumblr Launches Live Video Service Supported By YouTube, YouNow & Others By: Benzinga via Benzinga June 21, 2016 at 16:29 PM EDT Earlier Tuesday, Yahoo! Inc. (NASDAQ: YHOO)'s Tumblr announced it would be launching a live video feature in the afternoon. This ... Read More >> Related Stocks: Alphabet-A Alphabet-C Bio-Techne Corp Facebook Twitter, Inc. Yahoo