C4L folk-
To be comprehensive, the project this guy suggests would be a big undertaking, but I'm thinking about running the idea past some possible library-land funders and getting back to him:
http://chronicle.com/blogs/conversation/2013/05/17/its-time-for-journals-to-be-author-reviewed/?cid=pm&utm_source=pm&utm_medium=en

Funding aside, anyone interested in the concept?  Happy to hear your thoughts, online or off.

Just have this wild notion that, if done right, we could connect regular (annual?) qualitative metrics from such a portal and other sources to metrics for content in our repository and become a depended-upon component of the measuring infrastructure related to tenure, promotion, and the like--in addition to the preservation/archival role we serve.
--DBL