Still not sure what model would work best for your particular budget? The article also offers numerous helpful tips for keeping eBook costs down while growing a collection.
The article concludes with a list of questions that should be addressed before selecting any eBook package. For example; making sure the technical requirements match the resources of your library and its users, examining the content and scope of the eBook package to make sure you're meeting your user's needs, and inquiring about user interface and other functions such as printing and copy/pasting from the eBook titles.
This is an excellent primer for any librarian looking to add eBooks to their collection. The next article in the series will include a case study of how the author's library has built its eBook collection.