If you loved eLibrary NJ, download its latest version, the app Libby.
Download the Libby App.
Next select that you already have a library card. (If not, please come sign up for one during normal library business hours.)
Then when asked for which library, search for Libraries Of Middlesex Automation Consortium. (South River Public Library belongs to Libby with this group.)
Finally, sign up/in with your library card and pin number.
Follow these directions, if you'd like to read Libby books on a Kindle Fire.