Tumblr Head of Sales, Lee Brown, has quoted the average ad purchase on Tumblr to be nearly six figures.
In July 2015, the system was modified so that users cannot remove or edit individual comments by other users when reblogging a post; existing comments can only be removed all at once.
Tumblr staff argued that the change was intended to combat "misattribution".
What I’ve learned over the last couple years: Women are really great at handling rejection because we are told from a very young age we need to be/do/look/etc better constantly.
We’ve dealt with so much rejection that if you get to a place of self acceptance, the rejection doesn’t bother you at a certain point.
In early June 2012, Tumblr featured its first major brand advertising campaign in conjunction with Adidas.
Adidas launched an official soccer Tumblr blog and bought placements on the user dashboard.
The feature is being rolled out in a "viral" manner; it was initially made available to a group of 1500 users; other users may receive access to the messaging system if they are sent a message by any user that has received access to the system itself.
The messaging system only supports text-based conversations, although other features (such as group chat and image embeds) will be added in the future.
Tumblr also offered a "fan mail" function, allowing users to send messages to blogs that they follow.