MixPad - MixPad is free music Music Mixer and Recording software designed for easy audio production.
Workona - A better way to work in the browser.
Audio Video Editor and Mixer - Audio Video Editor and Mixer is a tool that helps you add changes to your video and audio files.
Session Buddy - Manage Your Browser Sessions
Add Audio to Video - Add Audio to Video empowers you to add custom audio tracks to your video files.
Toby - Better Than Bookmarks