10. Anki + RhinoSpike = Utter awesomeness: Copy and paste MP3's URL and Anki does the rest. An explanation of how Anki, a spaced-repetition learning system, can automatically add audio recordings from RhinoSpike or any URL to flashcards.
9. Rosetta Stone teaches Michael Phelps grammatical gender in genderless Chinese. One of my personal favorites, watch an eager-to-please Michael Phelps flub being a paid sponsor for Rosetta Stone.
8. Are high school students wasting time learning foreign languages?, covering a few articles on how ineffective high-school and college language learning is in the U.S.
7. Double your learning with practice + exposure as compared to practice alone, discussing the research that led to that conclusion.
6. Get audio recordings of any foreign language text for free, which explains how to get free audio recordings using RhinoSpike.

4. Use music, TV, movies, radio and the internet to ingrain your target language in your brain. A guest post by Susanna Zaraysky, where she explains some of the tips from her book, Language is Music.
And a drum roll for the top three, after the jump...