From today Google adsense is supporting 4 new languages - Croatian, Czech, Slovak, and Traditional Chinese. This brings the total number of languages supported to 22. In addition Arabic, Bulgarian, Greek, and Hebrew are supported for search alone.

I have been waiting for Google to enable my mother tongue (Malayalam). I don’t think it will happen anytime soon. Meanwhile there are a lot of Malayalam sites which are hosting ads in their site violating adsense terms of service. I think Google is ignoring most of these violations as I am seeing these sites running for years!