Accessible Resources for Learning World Languages

Hello to all,
I am a Spanish professor at a community college and am trying to assure that all of my external resources from our learning platform are accessible to the visually impaired community.  Instead of going through the many links we already have posted, I thought I would start with folks who might have some expertise in the area already.  Do you know of any websites that give explanation and practice of the Spanish language (or French, German, and Japanese) for beginning to intermediate students that are accessible?  I would greatly appreciate any help or advice you might have for me.  ¡Gracias!
 
Julie