Site for "speak" improve

Hi people!

In my work I watched two classes of basic english and the teacher use the site http://www.languageguide.org/english/ to improve our english! It's very cool for basic words, because are recorded voices and not eletronic generated voice like google tranlate.
So, as usual I have a song to show you. It have a strong sex appeal and it singer is John Mayer!
Have fun and enjoy the lyrics!

http://www.youtube.com/watch?v=qRafVp-YMsY

By: Fabrício Alves