Forum Moderators: martinibuster
A recent thread about this issue: [webmasterworld.com...]
Just to be sure, you might want to start each page with <html lang="nl"> to define the language.
I have mixed Dutch and English content and indeed I see English ads on pages with mostly English content and Dutch ads on pages where Dutch content dominates.
IIRC, the HTTP language header is preferred over HTML meta tags and attributes.
My server sends 'nl' (Dutch) in the language header and like I said, Adsense still shows English ads on pages with predominantly English content (and that's when I'm surfing with an IP that's undoubtedly geo-targetted to the Netherlands). So it seems content is more important than headers and geo-targetting.