If you were looking to learn a language I would suggest starting with Duolingo. It is simple and free. And a little bit fun.
I found it more fun when friends were using it and we got competitive. In the past I have used audio tapes, reading children’s books, watching films in another language. Though I found this site to be the most proactive learning.
So If you have a language learning goal, and people you can share your new skills with than I think this is a great start.
Here is a link to the duolingo website where you can find the application as well.
Here is a link to the Duolingo TED talk.