Awesome design, URLs, content and experience.

Great series.

Very direct and clear.

A solid resource that includes slang.

Fairly decent content for the beginnings of a book, though not complete.

A correspondence course via email for learning Esperanto. This seems like a pretty good idea.

Live video learning for languages, exams, etc. Neat idea, though I wonder how easy it is over the long term.

I agree with the problems and the proposed solutions.

Neat idea.

Really neat idea. Yahoo! has one of the largest supplies of good front-end engineers among large companies, so it's good to see them spreading the expertise and best practices around consciously.