Websites that teach German
Duolingo.com – Free
Various learning challenges in a game format.
Yabla.com- $9.95/mo
Video lessons and stored video/audio flashcards
Memrise.com – Free
Stored video/audio flashcard
Quizlet.com – $1.67/mo
Stored video/audio flashcards which can be arranged into games
Rosettastone.com – $12-$18/mo
Video/audio context sentences that grow more complex
ThoughtCo
German Proficiency Tests and Certification – Test Your German Proficiency
Deutsche Welle
Learn German for free, wherever you are.