Yiddish Language Instructions - Duolingo #yiddish
I don't know if this is appropriate or not but Duolingo has just offered a Yiddish Language course at www.duolingo.com
I had been using it for learning other languages, but when the Yiddish course was released I had to try it. The service is free with ads or there is a yearly subscription option. Other than being a customer, my only connection with the company is they are located in Pittsburgh.