Todd Digby, MnSCU System Director for Libraries, and Stephen Elfstrand, PALS Executive Director, have recently published an article on MnPALS Plus published in Computers in Libraries.
The article "DISCOVERING OPEN SOURCE DISCOVERY: Using VuFind to Create MnPALS Plus" explains that PALS staff members scanned the open source environment to see what was available that could provide a feasible discovery solution for our libraries. Since PALS already had experienced, highly capable programmers and systems staff, the open source option was an approach that we could comfortably take using existing resources. VuFind was modified in several important ways for use in a large Aleph consortium.
Digby, Todd, and Stephen Elfstrand. "DISCOVERING OPEN SOURCE DISCOVERY: Using VuFind to Create MnPALS Plus." Computers in Libraries 31.2 (2011): 6-10. Academic Search Premier. EBSCO. Web. 23 Mar. 2011.