With web proxy anonymizers it really depends. Some of them may be driven directly by somebody like the cia - :o). This java app:
http://anon.inf.tu-dresden.de/
Is offered by a german university and may be at least serious, tho nothing's really anonym these days.
http://anon.inf.tu-dresden.de/
Is offered by a german university and may be at least serious, tho nothing's really anonym these days.