Microblogging platform Tumblr experienced a widespread outage on Friday evening, January 6, affecting thousands of users.

You might not notice that Tumblr is adding a few ads to your mobile feeds, but they are there. On Monday, (April 22) Tumblr announced it was bringing over a few "sponsored posts" from its brand blog ...

Animated GIFs, journal entries, cat photos, and now, more ads. Tumblr, in an effort to further boost its revenue, is rolling out ads into users’ mobile feeds. The privately held social-networking and ...