This looks like a big deal.

Prestigious US academic institution Princeton University will prevent researchers from giving the copyright of scholarly articles to journal publishers, except in certain cases where a waiver may be granted.

The new rule is part of an Open Access policy aimed at broadening the reach of their scholarly work and encouraging publishers to adjust standard contracts that commonly require exclusive copyright as a condition of publication.

I would guess that the waiver would be given routinely, but this is a step in the right direction.  via Andrea Ortolani.