vowel sounds / consonants
Inglish - English words spelled the way they sound.
Howjsay - The accent is British, but this is still a useful site for listening to pronunciation.
Manythings - American English pronunciation practice.
Audio English - For beginners to advanced, you'll find a lot of good opportunities to practice speaking here.
Rachel's English - This site focuses on American English pronunciation.
Spoken Skills - There are a lot of great listening exercises on this page.
TalkEnglish - Go to this page for free lessons in pronouncing consonants and vowels.