Play and Learn Portuguese on the Web and your Mobile Device
Duolingo Portuguese is a free, game-like Portuguese learning system for Web and mobile devices that has taken off like crazy in the last couple of years. It is free and fun - and they put forth that 34 hours of Duolingo practice is equivalent to one semester of university-level Portuguese.
Duolingo's free Portuguese course is great for beginners and intermediate learners. It teaches you Portuguese from step one and plays like a video game - including the addictive part! The learning system is visually stunning with cartoonish graphics and photos to illustrate vocabulary and concepts and help you memorize them.
Most importanly, perhaps, is that it is quite fun and keeps you coming back for more learning. Thus, there is no lack of motivation to learn a language.
Duolingo Portuguese Apps
Duolingo offers free apps for learning Portuguese on iPhone, iPad, iPod Touch and Android devices.