Earlier this year, a major provider of library content, EBSCO, bought out the eBook provider NetLibrary. The library has access to thousands of these eBook titles, available through the library’s online catalog, MnPALS.
All the same content is there, but the look-and-feel and search is a bit different. And, they are also now accessible though the EBSCO databases (like Academic Search Premier, on the Online Resources page).
See this screencast for a how-to on limiting your search to eBooks in EBSCOhost: