According to their respective websites, 4-year-old microblogging platform Tumblr now hosts more blogs than 8-year-old WordPress.com.
In January, Tumblr had more than 7 million individual blogs. At the time of this writing, the total blog ticker on its site read about three times that at 20,873,182 -- beating out WordPress.com's current count by about 85,000 blogs.
WordPress.com's count doesn't include sites that people host themselves with the open source software via WordPress.org, but given that the hosted service had about a four-year headstart, surpassing it in number is still an impressive feat for Tumblr.
Clearly a flood of individuals have been signing up for Tumblr lately. But top companies in entertainment and news and fashion have also recently launched Tumblr blogs. They're using the platform in a very different way than they use WordPress.com.