Clipchamp Youtube Video Editor - Create YouTube videos for your YouTube channel with intros, outros and titles with Clipchamp's free online video editor. No skills needed.
JN Soundboard - An open-source hotkey soundboard program
Sound Byte - Sound Byte is a computerized cart rack machine for the Windows and Macintosh - play mp3, WAVE, AIFF, and other sound files at the click of a mouse
CasterSoundboard - A soundboard for hot-keying and playing back sounds. (For podcasting)
Soundplant - Play sound files with the computer keyboard
Linux Show Player - Sound player designed for stage productions