My Google Alert brought my attention to a corner of the world I don't see much: Japan.
It's a blog about wood-fired ovens in Japan, and aptly named Wood fire pizza ovens in Japan.
They also apparently sell some small ovens. (They do not look like general purpose ovens; they look like they are better for pizza.)
They even have a kids cooking class.
I thank them for making their interest available in English so we can see what they are doing.