The extension can be downloaded for free at
http://openly.oclc.org/openurlref/
OpenURL Referrer uses your institution's link resolver settings from
the OCLC WorldCat Registry, so there is no need to manually configure
the extension. Institutions can register their resolver in the OCLC
WorldCat Registry by visiting http://worldcat.org/registry/
institutions. All institutions can register for free, even if they
are not OCLC member libraries.
Eric Hellman, Director OCLC Openly Informatics
Division
hell...@oclc.org 2 Broad St., Suite 208
tel 1-973-509-7800 Bloomfield, NJ 07003
http://openly.oclc.org/