EBSCO Academic Collection has about 160,000 ebooks. You can download , print and add notes. It's really easy to export the citations to referencing software like endnote basic.
We also have a growing collection of individually ordered ebooks. We get these ebooks from Proquest. These are also in Eolas. The Proquest ebooks go into Ebook Central Database. We keep records with links for both types in the library catalogue. (See RSS feed below)
Some of our other library databases like Academic Source Complete and Business source complete and JSTOR have a number of ebooks even though they are not typical "ebook databases". There are also some fantastic open access ebooks in Eolas such as those from Openstax.