The BBC has released over 16,000 sound effects for free download
Sunday Sound Effects Round Up - Avosound, A Sound Effect, Pro Sound Effects, SoundBits, Boom Library, Sound Ideas | Pro Tools - The leading website for Pro Tools users
Sounddogs Release Free Sound Effects Librarian Application With Spot To Pro Tools | Pro Tools - The leading website for Pro Tools users
Sound Effects Library 1 - Album by Finnolia Sound Effects | Spotify
First Look: SoundQ Sound Effects Library Manager | Creative Field Recording
Series 2000 Sound Effects Library | Soundeffects Wiki | Fandom