If it supports the language your're looking for, Duolingo is a great option. I know it's probably not the best or most advanced teaching (but it's pretty damn good), but the two main benefits are: A: It's

Thanks for the detailed and thorough explanation. Very helpful.

Definitely a problem, but I'd be careful assuming that just 'hiring more people' is the solution. After running customer service for James Altucher's newsletter business and seeing how other companies