Alice.org - I don't know if I already had this, but it is a 3D environment with the goal of learning programming through the creation of interactive 3D objects. Looks quite nice.
Archive 11. June 2008
AVOX Antares Vocal Toolkit - wow! That's exactly what I've been looking for - live-editing of voices (or batch in audio editing) with various effects. Ideal for my avatar work in SL, to give avatars suitable sounds. Specifically, Mutator and Articulator are interesting (the latter is perfect: it overlays the formative parts of the voice over other sounds and thus lets, for example, the wind speak).
Lunatic Python - bidirectional interface between Lua and Python.