I know both are free, but I think you can choose to pay to be a Premium Member or something if you want to. I am not quite sure what the difference between being a regular and premium member are though.
I do not know too much about Rosetta Stone other than it is rather expensive, but it may be a good way to start out even if it does not get you fluent in it. I know there is a couple of websites (like Livemocha and Busuu) where you can teach yourself at your own pace, and then people that are fluent in that language can help you improve in the language. I have not used either of them, but I have heard good things about both if you want to check those out!
I am working on getting better at speaking of course, but I am focusing more on writing because I am more interested with translation than interpretation. I think it would be a good job too as well as one that I would love since I really enjoy working with the languages!
I am planning on going into translation since I am better with writing in both than I am speaking. I am not exactly sure what I want to translate yet but I have been considering books and video games. I might look into translating documents too since I know that is needed quite often.
French is my primary major since I am best wish French, and Japanese is my secondary major since I thought it would be good to study a third language. I am really intrigued by both cultures, and surprisingly, the two languages go together pretty well. I have noticed that a lot of people seem interested in learning Japanese as well, especially on the PST side of the fence.