The vast majority of us have at one point wished we were bilingual. Whether it be that you've simply not had the time for it, or couldn't afford a private tutor, the want has still remained. Duolingo can fix that.
Duolingo is a website that enables you to learn a foreign language absolutely free of charge and after following the success of a private beta starting on the 30th November 2011, Duolingo finally went public seven months later on the 19th June 2012.
It's very easy to use, and certainly is effective. You don't even need to focus a large amount of time or effort at once!