Tumblr has just hit a major milestone in its path to blog network domination. Today, Tumblr officially topped the 100 million blog mark.

Tumblr currently has 100.1 million individual blogs, which are responsible for 44.6 billion posts.

The Next Web first noticed that the ticker had crossed the 100 million mark.

Tumblr, which was founded in 2007, hit 50 million blogs about a year ago. At the beginning of March, Tumblr reported 93 million blogs. That means that Tumblr has added around 7 million blogs in less than a month. That’s some serious growth.

If you want to get a sense on how post blog posts are rolling in on a daily basis, Tumblr reports that there have been over 80 million post today alone.

In the last few months, Tumblr has launched a new native iOS app, and has added tablet support for both Android and iOS.

Tumblr also broke into the top ten sites in the U.S. rankings, although they currently sit at #14 in terms of Quantcast data.

Tumblr is growing like a weed – even topping Facebook in a recent usage survey of teens. Here’s to another 100 million blogs, guys.