"Check out" option no longer available in NetLibrary 4.0
With the release of 4.0 of NetLibrary, users no longer have the option to "check out" titles. This means that the link to check out a title for a specified period of time was removed from the Details page and the Details tab in the online reader. The view functionality that an overwhelming majority of users select to read eBooks online is still available and functions in exactly the same way it did previously.
The view functionality allows a user to access a copy of a title on a rolling 15 minute basis. If the user continues to be active in reading the title (e.g., turning pages, conducting full-text searches, taking notes, navigating the Table of Contents) they will continue to have access. Once the user becomes inactive, either by not performing any of the functions listed or by ending their session, the copy will become available for another user to access.
If your library has the Adobe Content Server (ACS) license to allow for offline reading of eBooks, your library will still the link to "check out and download." The link to simply "check out" for online reading is what has been removed.