The house of Babel

I am dreaming about what to put in the house of Babel.  First I thought I can put the following in it.

. Natural Languages

. Program languages

. Sign Languages, such as dactylology,

Under natural languages, I want to put some items that are mainly useful foreign languages learners, such as dictionary, translation, grammar, composition, Answering room for explaining the new words. I have some idea that the person who answered the question will be given score, and the score will help them to get paid. And learn and teach room. and Research room.

You know, currently, not so many languages sites are really useful for users.