The Inside Story Of How Yahoo! Screwed Up Tumblr By: Benzinga via Benzinga June 15, 2016 at 15:33 PM EDT When Yahoo! Inc. (NASDAQ: YHOO) acquired Tumblr back in 2013, Tumblr was one of the hottest companies on the Internet. However, as ... Read More >> Related Stocks: Amazon.com Bio-Techne Corp Macy's Verizon Communications Yahoo