MIT's Foreign Languages and Literature department offers an extensive collection of online courses. Course format includes, lecture videos, interactive concept quizzes (solution key), problem sets, terms and definitions, suggested topics and links, and exams (with solution key).
Global Language Online Support System from the Defense Language Institute in Monterey, CA. Lessons are developed for independent learners to provide them with the learning/teaching tools for improving their foreign language skills. Reading and listening lessons are based on authentic materials (articles, TV reports, radio broadcasts, etc.) and consist of 4 to 6 activities. Arabic, Chinese, French, German, Greek, Gulf-Arabic, Hebrew, Japanese, Portuguese, and Spanish.
A collection of target language videos done by international students from the Five Colleges of Massachusetts in their home countries. Includes: Arabic, French, German, Spanish, Japanese, Greek, Italian, and Portuguese.