Since the progression of freeware tools
for musicians and producers went to a top notch level
due to quality over the years
and in some cases are even ahead of commercial products,
it was about time to establish proper roundups at a public forum as a startup reference.
For quite some time free and commercial virtual instruments are listed here:
32-bit freeware effects are listed und updated here:
and recently a 64-bit freeware effects roundup will be listed here:
I am currently working with some of them on upcoming solo releases
and I`m really impressed by the quality and generosity of the developers.