A list of 13 websites for sound effects, music and much more. Many of them are free.
Archival Sound Recordings
You can explore 46,700 selected recordings of music, spoken word, and human and natural environments.
The Australian National Film and Sound Archive
This has a comprehensive collection of historical images and film about Australia. These images can be used for educational purposes.
Spoken Text lets you easily convert text into speech. Record books articles, web pages, Power Point presentations and any other text you have available to you in audio format.
Looking for movie and tv sound clips? All of the audio files have been databased and categorized -- to make searching and accessing easy.