Temporary Freebies
Kindle and Google Play Sesame Street Ebooks - Google link is listed first then individual Kindle links below
Audible.com - Free select Children and Teen audiobook titles. No subscription required.
Comixology - Free first issues of select online comic books
Amazon - free children/teen amazon ebooks separated by age levels. Not all on the list are free anymore so make sure you check the price.
Sebco Ebooks - Free Sebco ebooks that support state curriculum. Use link and it will autofill the free sign in information. Just add your library card number or school id number and name.