Tumblr is a microblogging social website designed to allow its users to share and post material and information from across the Web. Tumblr is accessible through desktop and mobile browsers, RSS feeds ...

The Tumblr microblogging, social networking and online sharing site was hit on Monday by a group that harasses blogs and practices Internet trolling — the posting of provocative or off-topic messages ...

Having a Tumblr blog is a great way to connect with current and potential customers in order to promote your business. One common Tumblr feature is the ability to "reblog," or share, other Tumblr ...

If you maintain a blog on Tumblr, it might be a good idea to stay away from the site for the time being. Apparently, hacker group GNAA has taken advantage of a major security hole to publish racist ...

When Yahoo bought Tumblr, it suggested that its adult and porn blogs would be left alone. Users found out this wasn't true when a new adult blog search policy went public on Thursday, capping Tumblr's ...

Tumblr founder David Karp and Instagram founder Kevin Systrom took the stage at TechCrunch Disrupt to talk about the hockey stick growth of their respective companies. Tumblr in particular is showing ...