What Happened To Tumblr? Here's Why The Blogging Platform Failed

Tumblr failed because it banned NSFW content, due to its inability to sell ads, lacking product stickiness, as well as differences in culture between the platform and Yahoo.

Deal-Making Don'ts: Lessons from Yahoo's Tumblr Acquisition - PON - Program on Negotiation at Harvard Law School

Tumblr: What It Is and How to Join It

Post Automatically to Social Media – Support

Where does Tumblr go from here?

How to Publish an Article in Tumblr Platform., by E Malathi

How To Make Money On Tumblr

Is Tumblr shutting down? Social blogging platform near to breaking point

Tumblr is downscaling after failing to 'turn around' the site - The Verge

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Tumblr Help