The CDL recently released two reports, one on Metasearch and another on Google Scholar.  The first report was written in partial fulfillment of the CDL’s National Science Digital Library (NSDL) grant.  Titled “Integrating Information Resources: Principles, Technologies, and Approaches,” it is specifically written to have utility beyond the NSDL project itself. 

Update: (The metasearch infrastructure project is no longer active. For Metasearch Info and Metasearch NSDL See:
http://www.cdlib.org/services/d2d/metasearch/index.html

The second report is based on UC campus library responses to a CDL survey on how campus librarians and library staff are using Google Scholar in their own work, with students and faculty, at public service desks, and in instruction.  The report, titled “UC Libraries Use of Google Scholar,” is available from the Inside CDL web site

http://www.cdlib.org/inside/assess/evaluation_activities/docs/2005/googleScholar_summary_0805.pdf .