In the midst of everything else, such as working, doing presentations (I’m in the midst of compiling a presentation on the Meiji era and yokai-ology), I’m also doing Duolingo for learning languages.
Currently, my “top” languages are French and Ukrainian. I also plan on trying to learn Romanian when Duolingo finishes the course, though having the French experience may help (as Romanian is another Romance / Latinate language).
I wish Duolingo would be better at doing languages like Japanese or even Mandarin, though, but as it’s a free community-based project, I can see why they may be having trouble. I hope to post a review of a Japanese language-learning tool (Japanese: The Game) soon, though.