(YouTube link)
You may have heard of Pronunciation Book, a YouTube channel in which English words and names are pronounced for the purpose of helping non-English speakers. Videos have been added steadily for over a year. Pronunciation Manual, on the other hand, is a channel with ridiculously incorrect pronunciations that look just like the videos from Pronunciation Book. Woe to the English student who gets the two sources mixed up! Link -via Laughing Squid
http://www.forvo.com/
There is also an iPhone app.