https://www.online-tech-tips.com/computer-tips/free-sound-effects/ 10 Best Websites to Find Free Sound Effects

http://www.freesound.org/index.php FreeSoundProject  Large collection of downloadable sound files - must register for an acct - free

http://www.jamendo.com/en Jamendo  Download music from over 2000 albums - free and legal
http://www.lessclicks.com/free_sounds.html Less Click - Free Sounds – Web portal type of site.

http://www.podsafeaudio.com PodSave Audio Music tracks for use in podcasts, videos and other multimedia projects

www.soundbible.com SoundBible Free Sound Clips, Sound Bits and Sound Effects

www.soundamerica.com Sound America Web Site.
http://www.wavcentral.com WaveCentral