Links to other projects I'm involved in:

Sinebag a project dedicated to a mixture of popular and experimental electroacoustic music [myspace]
Ahornfelder label for audio and print releases
Ember improv quartett between free jazz and contemporary chamber music
Ahornfelder Festival annual festival for electroacoustic music I curate in Leipzig [myspace]

less active recently:
Trnn noise trio
Schubert-Kettlitz-Schwerdt trio fcussed on music created with objects only
Tangarten graphical works