Discuss and learn French: French vocabulary, French grammar, French culture etc.
It is a good question but unfortunately I do not have a good answer. Perhaps someone else will have a better idea.
I've also looking for something like that, I ended up finding www.blablafrancais.com , it's a learning site based on animated short video scenes in French. I find them funny and easy to understand. There are also practice videos to help us understand and practice the dialogues. It's a nice tool for learning speaking skills (there is no written material). The website is free but signup is required (but fast).
It looks interesting. The first 10 lessons are free. I cannot see how much it would cost to continue after that....
I expect it would not be too expensive but it does not say.
Edit: I see the website is very new and perhaps the eventual payment for extra lessons is not an issue for now...
Not sure about future paid lessons either . Guess I'll start with the free lessons and see what happens next. There was a new lesson published this week