Found this via Mashable.
Mango is a
new site that lets you take language lessons for free. The site has just launched in beta.Creating an account is super easy - just fill in your name and email address and you are off. It does run in flash so you need to make sure that's installed/enabled on your machine. You'll also need speakers so you can hear what is being said.
They indicate they will have the following languages available:
English for Spanish Speakers
English for Polish Speakers
So why don't you ESL folks give it a try and let me know how it stacks up to Rosetta and some of our other pay options we offer in libraries.
Oh and Mashable points to these other language resources online XLingo and Tutorom.