It seems that Dutch has almost as much content as Swedish - will it become a supported language soon?
@J_4_J - The number of lessons is only one factor (Czech has more than both and isn’t yet supported); the others are how many (a) total members and (b) paying members we have studying these languages. As you can see, Dutch is still quite a ways behind Swedish or even Korean from what the Activity Ranking shows. If a language has (a) a good amount of content and (b) a solid number of LingQ members actively studying the language then we will look at adding full support for it.
What is the difference between a language that is fully supported and one that is not?
@ColinPhilipJohnstone - In addition to including it in our list of supported languages, we will add a custom avatar outfit, custom background items and will also translate and record our intro series in that language.
@Alex
Okay, I see what you mean. 
Ah well, sometime in future the list of supported languages will grow, I guess.
Thanks for the information.