Mango Languages gives you 24/7 access to over 70 world languages and more than 20 ESL courses. These practical, self-paced courses make it simple to brush up on that high school French, rekindle your lifelong dream of visiting Ireland, or simply build on your high school Spanish.
This multi-purpose information resource is designed for middle and high school students and anyone new to the English language. Content covers a wide range of subject areas - including Science, Math, History, Civics, Life Skills and Literature - and is written in an age-appropriate interest level using vocabulary and simplified structure helpful to non-native speakers.
USA Learns is a free website to help adults learn English. Practice speaking, reading, writing, listening, vocabulary, grammar and more. You can get to this website from any computer. Just register on the site and you can track your progress. Includes both Beginning and Intermediate courses.
Live Lingua - Foreign Service Institute
The FSI (Foreign Service Institute) language courses are arguably the best free language courses available anywhere. The FSI language courses cover over 40 languages from the most spoken in the world to some less well known ones. This material is public domain, so no costs and no commercials. Feel free to use and download the PDF files and audios on this page however you would like.
Live Lingua - U.S. Peace Corps
The U.S. Peace Corps has been sending volunteers from the United States to countries all over the world for over 50 years. In fact, Live Lingua was founded by one of these volunteers. Live Lingua has contacted Peace Corps offices in Washington D.C. to obtain permission to be a repository of these courses, but we do not own any rights to them.
The Open Culture website provides access to over 40 free language learning sites. Some are duplicates of the Foreign Service Institute above, but there are many others as well. Many include .pdf versions of workbooks for download.