There's a discussion thread at the Chronicle of Higher Education on how journal rankings are used in promotion and tenure. (Accessible only to subscribers.) The discussion hasn't touched on OA issues yet, but it could if you wanted it to.
Posted by
Peter Suber at 11/09/2005 05:10:00 PM.
The open access movement:
Putting peer-reviewed scientific and scholarly literature
on the internet. Making it available free of charge and
free of most copyright and licensing restrictions.
Removing the barriers to serious research.