> http://www.openbsd.org/index.html
> or
> http://www.openbsdfoundation.org/index.html
>
> What is the difference?
For contributions to the OpenBSD Project, I make the decision of how
to spend it. This is very low volume accumulation, but gives me the
flexibility to solve problems quickly.
For contributions to the OpenBSD Foundation, a board of directors
(independent from me) makes spending decisions based upon their own
criteria. The Foundation is accumulating a larger fund, and has to
demonstrate their spending:
http://www.openbsdfoundation.org/activities.html
It is up to you!
> Is money use differently on each plateform?
It goes to OpenBSD in the end, here or there, to encourage innovative
open source development by a community of volunteers.