Use these websites to help you improve your pronunciation.
fonetiksThis site has a pronunciation guide for various sounds, stress, and tone. Examples are pronounced.
Sounds, Sentences and DialoguesThis site has videos, live and animated, of individual sounds; dictation of sentences; and dialogue between and male and a female that allows you to record one of the parts. You will need a microphone hooked up to your computer.Silent Letters3 exercises for picking silent letters.
Minimal Pairs
You can listen to minimal pairs then take a quiz. There are 24 lessons.
This site has very clear videos, live and animated, of individual sounds with step-by-step descriptions.
Try this website to see how to move your mouth as you sing songs!