[gibrown]

It's not dominant, it's apparently perceived that way within tech circles because they focus on tech.

There's not a good apples to apples comparison of public data, but for instance...

Medium 20k authors per week: http://recode.net/2015/09/28/ev-williams-medium-raises-57-mi...

WordPress.com average 12.7m posts per week: https://en.blog.wordpress.com/2016/01/06/the-2015-wordpress-...