NPR’s social media team launched the NPR Tumblr, a short-form blog that will feature photos and quotes that play to the strengths of the blogging platform. Tumblr launched in 2007 and has more than 8 million users; it’s distinguished by its visual appeal and the ease with which users can post and share photos, text, links, music and video. In today’s first post, featuring an arresting image of a monarch butterfly, NPR’s Andy Carvin cites Fresh Air’s Tumblr as the inspiration for the network’s foray onto tumblelogging. In July, NPR hit a major social media milestone when its Facebook page surpassed one million fans.