TumbleBooks is providing libraries with free access to all products until August 31st-- you don't even need a library card! 

Tumblebooks Library (ebooks/activities for kids K-6): Click on the link to the right if you have a library card.
If you don't, use this link:

TumbleMath (ebooks/activities for kids K-6):

TeenBookCloud - (ebooks for grades 7-12) 

AudioBookCloud - all ages audio book database

RomanceBookCloud - a huge collection of steamy Romance novels for the older crowd!

TumbleBooks’ databases are easy to use, and feature unlimited access from home! You can read as many books as you want, when you want, and on any device. There are no check-outs, holds, or bulky downloads. Books are available instantly.