Tumblr’s Founder Steps Down

Tumblr’s founder, David Karp, has stepped down. He posted the letter he sent to colleagues this morning on his blog:

I look back with so much pride. At a generation of artists, writers, creators, curators, and crusaders that have redefined our culture, and who we have helped to empower. There are no words, though, that can express how sincerely grateful I am for the privilege of working with you. This team and place has been my family and home for most of my adult life. That I have gotten to spend this time working with people so spectacularly talented and unstoppably optimistic is a blessing I hope you have shared, and will continue to share.