Library Journal has a news article "Google Scholar Links with Libs." Libraries with Open URL link resolvers such as SFX by Ex Libris, Article Linker by Serials Solutions, and 1Cate by Openly Informatics, authorize the company providing the link resolver to give Google its holdings information. Google then highlights links in Google Scholar results pages that cite items the library holds.

Interesting.... While it makes me cringe (ala nails on a black board) to hear when my doctors/researchers just do a search in Google for information (not in Medline), I think a link resolver tagging (for lack of a better word) the library owned resources within Google Scholar is very helpful. I would love for something similar to work in Amazon.com with books. However, I am not sure how Google and the link resolver companies deal with information that doesn't have a PMID or a DOI.