Newsweek’s Tumblr editor, Mark Coatney, who’s built up one of the most interesting mainstream tumblrs there are, is leaving Newsweek to go to Tumblr.

On his personal Tumblr he writes:

I’ve decided to leave my position at Newsweek and accept a job at Tumblr. Though this is cliche, it is indeed true that this has been a difficult decision for me. I have been and continue to be a loud and persistent defender of Newsweek, and this is not (mostly, anyway!) simply because they sign my checks; I very much believe in the people and publication, and think they’ll be doing really great work for many years to come.

But this decision isn’t about the future of Newsweek; it’s about the future of Tumblr, and what I believe is a really interesting and great opportunity to help shape and grow a community, and to guide publishers into a new and better way of connecting with their readers. One of the reasons I’ve long been interested in online journalism is in the ways it can be, in a way no other medium can, a two-way communication between writer and reader; Tumblr is one of the best ways I’ve seen to accomplish that.

In his new gig, he’ll be pitching Tumblr to other news outlets, “show[ing] how this platform can be key to connecting journalists and readers, making the process more engaging and conversational.”

Another Tumblr employee reblogged part of Coatney’s post, saying “There are now TWO English majors at Tumblr. So watch out!”