Acoustica - Acoustica is an audio editing tool for editing, mastering and restoration work on both Mac and PC.
Proboards - ProBoards is a host of free forums with customer service.
Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
ForumFree - ForumFree allows you to create a forum or a blog in a few simple steps.
Magix SpectraLayers - SpectraLayers Pro transforms sound into a unique visual world of multidimensional audio data.
PlushForums - PlushForums is a modern online forum hosting platform.