“One interesting question is whether Tumblr more closely resembles a blogosphere network than a microblogging network like that of Twitter.”
But in the rush, one network has been more or less ignored by researchers: Tumblr, a microblogging platform similar to Twitter. So an interesting question is how the network associated with Tumblr is different from the Twitter network.
Today we get an answer thanks to the work of Yi Chang and pals at Yahoo Labs in Sunnyvale. These guys point out that relatively little is known about Tumblr compared to other networks like Twitter and set out to change this.
The basic statistics are straightforward. Tumblr is a microblogging service with about 160 million users who together have published over 70 billion posts.