We found that Wordpress is the most-used platform among self-hosted blogs, which perhaps isn’t a huge surprise. It has more than twice as many blogs in the top 100 as Movable Type, the blog platform that came in second place.
Wordpress is used by 27 blogs in the top 100.
Movable Type is used by 12 blogs in the top 100.
Only 8 of the top 100 blogs use a custom-made blog platform.
Drupal is the only general-purpose CMS with any presence worth mentioning, with 4 blogs in the top 100.