Sometimes comments have a lot more substance than actual posts. Take this one by Rene with the theory that Swiss German and Estonian share some influences from German that have been forgotten in the original language. Surely that’s a possibility. Then again, because of very colorful historical Estonian as a language is a whore (not to be misinterpreted – I like Estonian a more than anyone, I’m just stating the obvious here) that has influences from English, Russian, Finnish, German, Swedish, Dutch and every other language on the planet except Swahili.
Oh, and in case anyone wants to learn that language with low moral standards, here are my materials from my extremely successful Estonian class:

Cheat sheet

Slides